Climate and monthly weather forecastCuster, WA
Climate and monthly weather forecast
Weather in January
January is a frosty winter month in Custer, Washington, with an average temperature ranging between min 36.3°F (2.4°C) and max 43.3°F (6.3°C). Custer greets January with an average high-temperature of a chilly 43.3°F (6.3°C), marking a slight deviation from the preceding month. Weather in January »Weather in February
The last month of the winter, February, is also a frosty month in Custer, Washington, with an average temperature fluctuating between 44.1°F (6.7°C) and 35.8°F (2.1°C). The initiation of February records an average high-temperature of a still chilly 44.1°F (6.7°C), displaying a near consistency with the previous month. Weather in February »Weather in March
The first month of the spring, March, is still a chilly month in Custer, Washington, with temperature in the range of an average low of 38.8°F (3.8°C) and an average high of 48.4°F (9.1°C). The advent of March denotes an average high-temperature of a still chilly 48.4°F (9.1°C), subtly different from February's 44.1°F (6.7°C). Weather in March »Weather in April
April in Custer, Washington, is a cool spring month, with an average temperature fluctuating between 54.1°F (12.3°C) and 41.9°F (5.5°C). April's arrival coincides with a marginal rise in the average high-temperature, moving from March's frosty 48.4°F (9.1°C) to a cool 54.1°F (12.3°C). Weather in April »Weather in May
The last month of the spring, May, is an enjoyable month in Custer, Washington, with an average temperature fluctuating between 61.7°F (16.5°C) and 46.6°F (8.1°C). The shift from April to May introduces a subtle increase in the average high-temperature, moving from a fresh 54.1°F (12.3°C) to a comfortable 61.7°F (16.5°C). Weather in May »Weather in June
June, the first month of the summer in Custer, is still a comfortable month, with an average temperature ranging between max 64.9°F (18.3°C) and min 50.2°F (10.1°C). Custer, Washington, records an average high-temperature of a still refreshing 64.9°F (18.3°C) in June, maintaining a close correlation with May's 61.7°F (16.5°C). Weather in June »Weather in July
July in Custer, Washington, is an agreeable summer month, with an average temperature varying between 53.4°F (11.9°C) and 69.8°F (21°C). Transitioning into July, Custer experiences an average high-temperature of an agreeable 69.8°F (21°C), marking a minor shift from the preceding month. Weather in July »Weather in August
August, the last month of the summer in Custer, is also an agreeable month, with an average temperature varying between 54.9°F (12.7°C) and 70°F (21.1°C). Custer's temperatures peak on average in August, reaching 70°F (21.1°C) at their highest and 54.9°F (12.7°C) at their lowest. Weather in August »Weather in September
The first month of the autumn, September, is still a comfortable month in Custer, Washington, with temperature in the range of an average high of 64.8°F (18.2°C) and an average low of 52°F (11.1°C). Custer starts September with an average high-temperature of a refreshing 64.8°F (18.2°C), hinting at a minimal fluctuation from August. Weather in September »Weather in October
October, the same as September, in Custer, Washington, is a moderate autumn month, with an average temperature varying between 46°F (7.8°C) and 55.9°F (13.3°C). The arrival of October is marked by a minor reduction in average high-temperature, sliding from a comfortable 64.8°F (18.2°C) in September to a mild 55.9°F (13.3°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Custer, Washington, with an average temperature varying between 47.7°F (8.7°C) and 41°F (5°C). During the shift to November, a minor reduction in average high-temperature is observed, shifting from a refreshing 55.9°F (13.3°C) in October to a frosty 47.7°F (8.7°C). Weather in November »Weather in December
December, the first month of the winter in Custer, is still a cold month, with an average temperature ranging between min 36°F (2.2°C) and max 41.9°F (5.5°C). During the coldest month, December, temperatures average a high of 41.9°F (5.5°C) and a low of 36°F (2.2°C). Weather in December »Updated: Aug 6, 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
The months with the highest humidity are January and November, with an average relative humidity of 83%.
Throughout the year, there are 176.1 rainfall days, and 43.78" (1112mm) of precipitation is accumulated.
Months with snowfall are January through April, November and December.
Throughout the year, there are 10.5 snowfall days, and 6.77" (172mm) of snow is accumulated.
The months with the least sunshine are January and December, with an average of 3.9h of sunshine.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
February is the month with the most snowfall. Snow falls for 3.7 days and accumulates 2.05" (52mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
In Custer, snow does not fall in May through October.
June has the longest days of the year, with an average of 16h and 6min of daylight.
June and July, with an average maximum UV index of 5, are months with the highest UV index.
The least humid month is July, with an average relative humidity of 74%.
July is the month with the least rainfall in Custer. Rain falls for 7.3 days and accumulates 0.67" (17mm) of precipitation.
The months with the most sunshine are July and August, with an average of 10.4h of sunshine.
In Custer, August is identified by the average highest temperatures, reaching a peak of 70°F (21.1°C) and a low of 54.9°F (12.7°C).
The month with the most rainfall is November, when the rain falls for 19.7 days and typically aggregates up to 7.13" (181mm) of precipitation.
December, marked by an average high-temperature of 41.9°F (5.5°C) and a low-temperature of 36°F (2.2°C), is the coldest month.
With an average of 8h and 18min of daylight, December has the shortest days of the year.
Average temperature
Custer, WA
The warmest month (with the highest average high temperature) is August (70°F).
The month with the lowest average high temperature is December (41.9°F).
The month with the highest average low temperature is August (54.9°F).
The coldest month (with the lowest average low temperature) is February (35.8°F).
Average pressure
Custer, WA
- Average pressure in January:
30.07"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30"Hg - Average pressure in April:
30.03"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
30.01"Hg
- Average pressure in July:
30.04"Hg - Average pressure in August:
30.01"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.02"Hg - Average pressure in December:
30.06"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).
Average wind speed
Custer, WA
- Average wind speed in January:
6.2mph - Average wind speed in February:
6.2mph - Average wind speed in March:
6.2mph - Average wind speed in April:
5.5mph - Average wind speed in May:
4.5mph - Average wind speed in June:
4.6mph
- Average wind speed in July:
4.3mph - Average wind speed in August:
3.9mph - Average wind speed in September:
4.3mph - Average wind speed in October:
5mph - Average wind speed in November:
6.3mph - Average wind speed in December:
6.3mph
The windiest months (with the highest average wind speed) are November and December (6.3mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity
Custer, WA
The months with the highest relative humidity are January and November (83%).
The month with the lowest relative humidity is July (74%).
Average rainfall
Custer, WA
- Average rainfall in January:
6.26" - Average rainfall in February:
3.7" - Average rainfall in March:
4.65" - Average rainfall in April:
3.35" - Average rainfall in May:
2.05" - Average rainfall in June:
1.42"
- Average rainfall in July:
0.67" - Average rainfall in August:
1.06" - Average rainfall in September:
2.36" - Average rainfall in October:
4.8" - Average rainfall in November:
7.13" - Average rainfall in December:
6.34"
The wettest month (with the highest rainfall) is November (7.13").
The driest month (with the least rainfall) is July (0.67").
Average rainfall days
Custer, WA
- Average rainfall days in January:
18.4 days - Average rainfall days in February:
16.1 days - Average rainfall days in March:
19.8 days - Average rainfall days in April:
17.1 days - Average rainfall days in May:
12.3 days - Average rainfall days in June:
11.9 days
- Average rainfall days in July:
7.3 days - Average rainfall days in August:
6.1 days - Average rainfall days in September:
12.8 days - Average rainfall days in October:
16.4 days - Average rainfall days in November:
19.7 days - Average rainfall days in December:
18.2 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.1 days).
Average snowfall
Custer, WA
The month with the highest snowfall is February (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Custer, WA
- Average snowfall days in January:
2.3 days - Average snowfall days in February:
3.7 days - Average snowfall days in March:
1.7 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0 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 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
2 days
The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Custer, WA
- Average daylight in January:
8h and 48min - Average daylight in February:
10h and 12min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 48min - Average daylight in May:
15h and 18min - Average daylight in June:
16h and 6min
- Average daylight in July:
15h and 42min - Average daylight in August:
14h and 18min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 12min - Average daylight in December:
8h and 18min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in January:
3h and 54min - Average sunshine in February:
4h and 12min - Average sunshine in March:
5h and 48min - Average sunshine in April:
8h and 0min - Average sunshine in May:
9h and 18min - Average sunshine in June:
9h and 18min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
10h and 24min - Average sunshine in September:
8h and 54min - Average sunshine in October:
5h and 12min - Average sunshine in November:
4h and 24min - Average sunshine in December:
3h and 54min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 3h and 54min).
Average sunshine days
Custer, WA
- Average sunshine days in January:
10.6 days - Average sunshine days in February:
9.3 days - Average sunshine days in March:
9.1 days - Average sunshine days in April:
10.9 days - Average sunshine days in May:
16.4 days - Average sunshine days in June:
15.3 days
- Average sunshine days in July:
22.3 days - Average sunshine days in August:
23.2 days - Average sunshine days in September:
15.6 days - Average sunshine days in October:
13.2 days - Average sunshine days in November:
8.8 days - Average sunshine days in December:
10.5 days
The month with the most sunshine days is August (23.2 days).
The month with the least sunshine days is November (8.8 days).
Average UV index
Custer, WA
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Custer, WA
The months with the most cloud cover are January and December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility
Custer, WA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
