Climate and monthly weather forecastSalmon, ID
Climate and monthly weather forecast
The climate of Salmon
Salmon, Idaho experiences a climate classified as Dfb according to the Köppen-Geiger climate classification system. Located in North America, this implies a humid continental climate, marked by warm summers and a season absent of drought.Average monthly high temperatures vary greatly in Salmon, fluctuating from 25.2°F (-3.8°C) in December to a toasty 75.7°F (24.3°C) in the month of July. This significant annual fluctuation is augmented by the astounding breadth in low temperatures, which shows a similar trend, reaching the year's lowest temperature at 9.5°F (-12.5°C) in December and January but escalating to a very comfortable 47.5°F (8.6°C) in July and August.
The month of July experiences the lowest relative atmospheric humidity, merely 44%, which then hikes up to 89% by February. The amount of precipitation received also sees a wide variance, with maximum monthly rainfall observed in May , with a total of 2.05" (52mm). In stark contrast, July and August are the driest months, receiving merely half an inch of rainfall. The city witnesses snowfall from October to April, peaking in February with an average snow depth of 5" (127mm). The amount of snow received shows a progressive reduction from November to April after reaching the annual peak in February.
The best time to visit Salmon
The ideal time to visit Salmon is arguably during the months between May and September. This period aligns with the warmest months, yielding highs between 54.1°F (12.3°C) and 75.7°F (24.3°C). The lowest precipitation occurs from July to September, with average rainfall ranging from 0.51" (13mm) to 0.94" (24mm). These months also boast generous sunshine, garnering between 9.4 hours and 11.8 hours of sunlight per day ensuring pleasant conditions for exploring the city and surrounding areas. Moreover, wind speeds maintain a steady range from 4.5mph (7.2km/h) to 4.7mph (7.6km/h), well within comfortably calm ranges for any outdoor activities.The worst time to visit Salmon
The least appealing time for touristic visits to Salmon would be from November to March. This season is marked by glaring harshness of winter, with average high temperatures dropping to the range from 25.2°F (-3.8°C) to 34°F (1.1°C). Corresponding lows during this period hover between 9.5°F (-12.5°C) and 17.8°F (-7.9°C). In addition, snowfall reaches maximum levels, with upto 5" (127mm) observed in January and February, making travel potentially challenging. The visibility gets limited to a mere 4 miles which combined with the low levels of daylight ranging from 8.8 hours to 10.5 hours, make outdoor can venture a less enticing choice.Spring weather in Salmon
The spring months of March, April and May transition smoothly from the harsh winters and bring with them a significant change in all weather parameters. Average high temperatures see a robust increase from 34°F (1.1°C) in March to a comfortable 54.1°F (12.3°C) by May, while low temperatures also show similar trends, transitioning from 17.8°F (-7.9°C) to 33.8°F (1°C). April also happens to bring the highest precipitation, with 1.61" (41mm) of rainfall complemented by 3.39" (86mm) of snowfall. Daylight is also amplified, growing from 12 hours per day in March, reaching 14.9 hours a day in May.Summer weather in Salmon
Summer typically spans June, July and August, and the weather conditions are rather accommodating for tourism. High temperatures range from 64.4°F (18°C) to 75.7°F (24.3°C), making it the warmest period in Salmon. Nightly lows hover between 39.9°F (4.4°C) in June to 47.5°F (8.6°C) in August, ensuring a comfortable and enjoyable end to long sunny days. The amount of sunshine received is the highest for the year and extends from 11.2 hours per day to 11.8 hours per day. Rainfall decreases over this period, with July and August receiving the least amount of rain for the year at just 0.51" (13mm).Autumn weather in Salmon
The autumn months of September, October and November maintain a mild climate, with high temperatures dropping gradually from apleasant 65.3°F (18.5°C) in September to a chilly 35.2°F (1.8°C) in November. The lower temperatures also decline from 40.6°F (4.8°C) to 19.2°F (-7.1°C) during these months. Rainfall increases over the period, culminating to 1.1" (28mm) in October. Autumn also marks the initiation of the snowfall season with November witnessing an average of 2.32" (59mm) of snowfall.Winter weather in Salmon
Winter is the coldest season for Salmon, Idaho, spanning December, January and February. Average highs and lows both experienced during these months are the lowest for any point during the year, ranging from 25.2°F (-3.8°C) to 27.3°F (-2.6°C) and 9.5°F (-12.5°C) to 10.8°F (-11.8°C) respectively. These months also record the highest average snowfall for the year, with 5" (127mm) in February being the maximum. In stark contrast, the hours of daylight in winter are significantly lessened, falling to an annual minimum of 8.8 hours in December.Weather in January
Salmon, Idaho, rings in the new year in traditionally winter fashion, with sub-zero temperatures, snowy days, and decreased daylight hours. Outdoor enthusiasts can revel in the snowy landscapes and participate in winter sports. Weather in January »Weather in February
Barely discernible from its predecessor, February in Salmon picks up where January left off. The city continues to be a winter wonderland, ideal for skiing and snowboarding. However, snowfall is usually slightly more copious during this month, reaching up to 5" (127mm). Weather in February »Weather in March
The onset of Spring in March brings with it a transition in the weather dynamics of Salmon. The city begins to defrost; the snow starts to melt, and mild showers take over. The rainfall averages approximately 1.06" (27mm), a relatively high mark in the similar context. Weather in March »Weather in April
April ushers in a pronounced shift in the weather, natural scenery of Salmon starts to morph from wintry white to springtime green. The warmer climes become more prominent, and rainfall is more regular with spring showers. The temperatures span approximately from 25°F (-3.9°C) to 41.9°F (5.5°C), exhibiting a noticeable incline compared to March. Weather in April »Weather in May
May in Salmon paves the way for a complete transition from spring to early summer. Substantial changes in the weather pattern offer warmer temperatures and increased daylight hours, making it perfect for multiple outdoor activities. Weather in May »Weather in June
June marks the official beginning of summer in Salmon, with an overall surge in temperatures. This month presents an ideal opportunity for water activities as the town's rivers and lakes provide a cool respite from the heat. June's temperature reaches a comfortable average high of 64.4°F (18°C). Weather in June »Weather in July
Articulating the summer spirit in full swing, July in Salmon brings with it warm temperatures, extended daylight hours and low precipitation. Outdoor enthusiasts can enjoy hiking, fishing, and rafting amidst the city's beautiful landscapes. Weather in July »Weather in August
August exhibits an extension of summer heat with a slight hint of coming autumn towards the end of the month. Salmon in August is packed full of sunny days that beckon outdoor enthusiasts to the city's parks and trails. As July waves goodbye, August considers it a signal to withhold the high temperatures around 74.7°F (23.7°C). Weather in August »Weather in September
September is synonymous with the arrival of fall in Salmon, featuring a transition from warm, sunny days to cool, crisp nights. The majestic fall foliage together with the cooling temperatures make it an inviting month for outdoor activities. Weather in September »Weather in October
October encapsulates the essence of fall with plummeting temperatures and visually pleasing fall foliage—activities shift indoors as the weather in Salmon, Idaho, gets colder. The moderately chilly weather hovers around 48.7°F (9.3°C), hinting at the forthcoming winter season. Weather in October »Weather in November
November is distinctive in Salmon's weather tale as it marks the transition from autumn to winter. It encapsulates chilly breezes, occasional snowfall, and an overall decrease in temperatures. Showcasing an amplified chilliness, November's temperatures fluctuate from 19.2°F (-7.1°C) to 35.2°F (1.8°C). Weather in November »Weather in December
December heralds the true arrival of winter with cold temperatures, increased snowfall and reduced daylight hours. The landscapes of Salmon transform into a winter paradise, making it an ideal destination for winter sports. Known for exhibiting a significant drop in mercury levels, typical temperatures in December range from 9.5°F (-12.5°C) to 25.2°F (-3.8°C). Weather in December »Updated: Jul 20, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In Salmon, during the entire year, the rain falls for 129.5 days and collects up to 12.4" (315mm) of precipitation.
Months with snowfall are January through May, September through December.
In Salmon, Idaho, during the entire year, snow falls for 63.5 days and aggregates up to 22.76" (578mm) of snow.
January has the least sunshine of the year, with an average of 5.1h of sunshine.
The months with the lowest UV index are January, February and December, with an average maximum UV index of 1.
With an average relative humidity of 89%, February is the most humid month in Salmon, Idaho.
The month with the most snowfall in Salmon is February, when snow falls for 12.3 days and typically aggregates up to 5" (127mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.
The month with the most rainfall is June, when the rain falls for 14.9 days and typically aggregates up to 2.05" (52mm) of precipitation.
In Salmon, Idaho, snow does not fall in June through August.
June has the longest days of the year, with an average of 15h and 36min of daylight.
July, recording an average high temperature of 75.7°F (24.3°C) and a low temperature of 47.3°F (8.5°C), is Salmon's warmest month.
The months with the least rainfall are July and August Rain falls for 7.8 days and accumulates 0.51" (13mm) of rain.
With an average of 11.8h of sunshine, July has the most sunshine of the year.
July is the month with the highest UV index, with an average maximum UV index of 5.
August is the least humid month, with an average relative humidity of 43%.
Salmon's coldest temperatures are experienced in December, with average high temperatures of 25.2°F (-3.8°C) and lows of 9.5°F (-12.5°C).
With an average of 8h and 48min of daylight, December has the shortest days of the year.
Average temperature
Salmon, ID
The warmest month (with the highest average high temperature) is July (75.7°F).
The month with the lowest average high temperature is December (25.2°F).
The month with the highest average low temperature is August (47.5°F).
The coldest months (with the lowest average low temperature) are January and December (9.5°F).
Average pressure
Salmon, ID
- Average pressure in January:
30.25"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30.07"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.23"Hg
The month with the highest atmospheric pressure is January (30.25"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Salmon, ID
- Average wind speed in January:
4.8mph - Average wind speed in February:
4.8mph - Average wind speed in March:
5.2mph - Average wind speed in April:
5.2mph - Average wind speed in May:
4.8mph - Average wind speed in June:
4.8mph
- Average wind speed in July:
4.7mph - Average wind speed in August:
4.3mph - Average wind speed in September:
4.5mph - Average wind speed in October:
4.7mph - Average wind speed in November:
5mph - Average wind speed in December:
4.9mph
The windiest months (with the highest average wind speed) are March and April (5.2mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity
Salmon, ID
The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is August (43%).
Average rainfall
Salmon, ID
- Average rainfall in January:
0.63" - Average rainfall in February:
0.87" - Average rainfall in March:
1.06" - Average rainfall in April:
1.61" - Average rainfall in May:
1.89" - Average rainfall in June:
2.05"
- Average rainfall in July:
0.51" - Average rainfall in August:
0.51" - Average rainfall in September:
0.94" - Average rainfall in October:
1.1" - Average rainfall in November:
0.67" - Average rainfall in December:
0.55"
The wettest month (with the highest rainfall) is June (2.05").
The driest months (with the least rainfall) are July and August (0.51").
Average rainfall days
Salmon, ID
- Average rainfall days in January:
6.3 days - Average rainfall days in February:
7.4 days - Average rainfall days in March:
13 days - Average rainfall days in April:
17.9 days - Average rainfall days in May:
18.3 days - Average rainfall days in June:
14.9 days
- Average rainfall days in July:
7.8 days - Average rainfall days in August:
7 days - Average rainfall days in September:
9.4 days - Average rainfall days in October:
12.7 days - Average rainfall days in November:
8 days - Average rainfall days in December:
6.8 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (6.3 days).
Average snowfall
Salmon, ID
The month with the highest snowfall is February (5").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Salmon, ID
- Average snowfall days in January:
9.4 days - Average snowfall days in February:
12.3 days - Average snowfall days in March:
9.7 days - Average snowfall days in April:
8.4 days - Average snowfall days in May:
1.7 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.3 days - Average snowfall days in October:
3.1 days - Average snowfall days in November:
8.2 days - Average snowfall days in December:
10.4 days
The month with the highest number of snowfall days is February (12.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Salmon, ID
- Average daylight in January:
9h and 12min - Average daylight in February:
10h and 24min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 54min - Average daylight in June:
15h and 36min
- Average daylight in July:
15h and 12min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 30min - Average daylight in December:
8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January:
5h and 6min - Average sunshine in February:
5h and 42min - Average sunshine in March:
6h and 42min - Average sunshine in April:
9h and 0min - Average sunshine in May:
10h and 30min - Average sunshine in June:
11h and 12min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
11h and 42min - Average sunshine in September:
9h and 24min - Average sunshine in October:
7h and 24min - Average sunshine in November:
6h and 12min - Average sunshine in December:
5h and 12min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days
Salmon, ID
- Average sunshine days in January:
19.3 days - Average sunshine days in February:
13.3 days - Average sunshine days in March:
11.7 days - Average sunshine days in April:
7.7 days - Average sunshine days in May:
8.1 days - Average sunshine days in June:
11.3 days
- Average sunshine days in July:
19.4 days - Average sunshine days in August:
18.7 days - Average sunshine days in September:
17.7 days - Average sunshine days in October:
15 days - Average sunshine days in November:
17.1 days - Average sunshine days in December:
18.5 days
The month with the most sunshine days is July (19.4 days).
The month with the least sunshine days is April (7.7 days).
Average UV index
Salmon, ID
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover
Salmon, ID
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility
Salmon, ID
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
