Climate and monthly weather forecastDewey, UT
Climate and monthly weather forecast
Weather in January
January, like December, in Dewey, Utah, is a wintry winter month, with an average temperature fluctuating between 33.3°F (0.7°C) and 17.6°F (-8°C). Dewey's coldest temperatures are experienced in January, with average high temperatures of 33.3°F (0.7°C) and lows of 17.6°F (-8°C). Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Dewey, Utah, with an average temperature ranging between max 37.6°F (3.1°C) and min 21.9°F (-5.6°C). Dewey experiences an average high-temperature of a still icy 37.6°F (3.1°C) in February, subtly different from January's 33.3°F (0.7°C). Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Dewey, Utah, with an average temperature ranging between max 48°F (8.9°C) and min 31.1°F (-0.5°C). The transition from February to March brings a temperature rise, with average high-temperatures increasing from a wintry 37.6°F (3.1°C) to a frosty 48°F (8.9°C). Weather in March »Weather in April
April in Dewey, Utah, is a refreshing spring month, with an average temperature fluctuating between 55.4°F (13°C) and 36.9°F (2.7°C). In April, the average high-temperature marginally rises from a chilly 48°F (8.9°C) in March to a moderate 55.4°F (13°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Dewey, Utah, with an average temperature fluctuating between 65.8°F (18.8°C) and 44.2°F (6.8°C). A rise in the average high-temperature is observed during May, moving from a mild 55.4°F (13°C) in April to an enjoyable 65.8°F (18.8°C). Weather in May »Weather in June
June, the first month of the summer in Dewey, is a warm month, with an average temperature fluctuating between 54.9°F (12.7°C) and 79.3°F (26.3°C). The onset of June brings a temperature shift, with the average high-temperature moving from a comfortable 65.8°F (18.8°C) in May to a warm 79.3°F (26.3°C). Weather in June »Weather in July
July, like June, in Dewey, Utah, is another warm summer month, with an average temperature fluctuating between 61.5°F (16.4°C) and 83.3°F (28.5°C). During the warmest month, July, temperatures average a high of 83.3°F (28.5°C) and a low of 61.5°F (16.4°C). Weather in July »Weather in August
August, the last month of the summer in Dewey, is also a moderately hot month, with an average temperature fluctuating between 59.5°F (15.3°C) and 80.1°F (26.7°C). As July turns into August, the average high-temperatures rest at a still moderately hot 80.1°F (26.7°C), showing a minor variation from the prior month. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Dewey, Utah, with temperature in the range of an average high of 73.6°F (23.1°C) and an average low of 52.9°F (11.6°C). A mild drop in Dewey's average high-temperature is observed in September, transitioning from a warm 80.1°F (26.7°C) in August to a still moderately hot 73.6°F (23.1°C). Weather in September »Weather in October
October, like September, is another refreshing autumn month in Dewey, Utah, with an average temperature ranging between min 40.6°F (4.8°C) and max 59.2°F (15.1°C). The drop of average high-temperatures is noticeable in October, with a decrease from a warm 73.6°F (23.1°C) in September to a mild 59.2°F (15.1°C). Weather in October »Weather in November
November, the last month of the autumn in Dewey, is another chilly month, with temperature in the range of an average low of 29.8°F (-1.2°C) and an average high of 47.3°F (8.5°C). Dewey's progression into November includes a drop in the average high-temperature, from a mild 59.2°F (15.1°C) in October to a frosty 47.3°F (8.5°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Dewey, Utah, with temperature in the range of an average high of 34.9°F (1.6°C) and an average low of 19.8°F (-6.8°C). Dewey in December experiences a subtle temperature decline, with average high-temperatures reducing from a frosty 47.3°F (8.5°C) in November to a wintry 34.9°F (1.6°C). Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Dewey, UT
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.3°F).
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).
Average pressure
Dewey, UT
- Average pressure in January:
30.26"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.91"Hg - Average pressure in May:
29.88"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.19"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed
Dewey, UT
- Average wind speed in January:
4.6mph - Average wind speed in February:
5.9mph - Average wind speed in March:
7.2mph - Average wind speed in April:
8mph - Average wind speed in May:
7.7mph - Average wind speed in June:
8mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
5.8mph - Average wind speed in September:
6.3mph - Average wind speed in October:
6.1mph - Average wind speed in November:
5.8mph - Average wind speed in December:
5.1mph
The windiest months (with the highest average wind speed) are April and June (8mph).
The calmest month (with the lowest average wind speed) is January (4.6mph).
Average humidity
Dewey, UT
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is June (29%).
Average rainfall
Dewey, UT
- Average rainfall in January:
0.51" - Average rainfall in February:
0.51" - Average rainfall in March:
1.02" - Average rainfall in April:
0.94" - Average rainfall in May:
1.34" - Average rainfall in June:
1.02"
- Average rainfall in July:
3.15" - Average rainfall in August:
3.15" - Average rainfall in September:
1.73" - Average rainfall in October:
1.26" - Average rainfall in November:
0.59" - Average rainfall in December:
0.59"
The wettest months (with the highest rainfall) are July and August (3.15").
The driest months (with the least rainfall) are January and February (0.51").
Average rainfall days
Dewey, UT
- Average rainfall days in January:
4.7 days - Average rainfall days in February:
4 days - Average rainfall days in March:
9.1 days - Average rainfall days in April:
12.9 days - Average rainfall days in May:
12.6 days - Average rainfall days in June:
8.5 days
- Average rainfall days in July:
17.9 days - Average rainfall days in August:
16.5 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
8.7 days - Average rainfall days in November:
5.3 days - Average rainfall days in December:
5 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is February (4 days).
Average snowfall
Dewey, UT
The month with the highest snowfall is December (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Dewey, UT
- Average snowfall days in January:
4.8 days - Average snowfall days in February:
4.7 days - Average snowfall days in March:
1.9 days - Average snowfall days in April:
0.9 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:
0.7 days - Average snowfall days in November:
2 days - Average snowfall days in December:
4.4 days
The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Dewey, UT
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 48min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
6h and 6min - Average sunshine in February:
7h and 0min - Average sunshine in March:
8h and 36min - Average sunshine in April:
11h and 0min - Average sunshine in May:
11h and 30min - Average sunshine in June:
11h and 54min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
11h and 48min - Average sunshine in September:
10h and 54min - Average sunshine in October:
7h and 18min - Average sunshine in November:
7h and 12min - Average sunshine in December:
6h and 36min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days
Dewey, UT
- Average sunshine days in January:
23 days - Average sunshine days in February:
20.1 days - Average sunshine days in March:
19.9 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
14.7 days - Average sunshine days in June:
17.6 days
- Average sunshine days in July:
8 days - Average sunshine days in August:
9.8 days - Average sunshine days in September:
13.7 days - Average sunshine days in October:
19.2 days - Average sunshine days in November:
23 days - Average sunshine days in December:
22.6 days
The months with the most sunshine days are January and November (23 days).
The month with the least sunshine days is July (8 days).
Average UV index
Dewey, UT
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Dewey, UT
The month with the most cloud cover is January (Cloud cover 31).
The months with the least cloud cover are June and September (Cloud cover 12).
Average visibility
Dewey, UT
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).








