Climate and monthly weather forecastDonnelly, ID
Climate and monthly weather forecast
Weather in January
January, the same as December, in Donnelly, Idaho, is a freezing cold winter month, with an average temperature fluctuating between 14.7°F (-9.6°C) and 29.5°F (-1.4°C). Donnelly notes an average high-temperature of a still freezing cold 29.5°F (-1.4°C) in January, displaying minor variation from December. Weather in January »Weather in February
The last month of the winter, February, is another freezing cold month in Donnelly, Idaho, with temperature in the range of an average low of 17.2°F (-8.2°C) and an average high of 30.7°F (-0.7°C). Transitioning into February, Donnelly records an average high-temperature of a still subzero cold 30.7°F (-0.7°C), almost identical to January's 29.5°F (-1.4°C). Weather in February »Weather in March
March, the first month of the spring in Donnelly, is a wintry month, with temperature in the range of an average high of 37.6°F (3.1°C) and an average low of 22.8°F (-5.1°C). With the onset of March, Donnelly observes a minor temperature ascent, with the average high-temperature adjusting from February's subzero cold 30.7°F (-0.7°C) to an icy 37.6°F (3.1°C). Weather in March »Weather in April
April in Donnelly, Idaho, is a chilly spring month, with an average temperature ranging between max 46.2°F (7.9°C) and min 27.7°F (-2.4°C). The commencement of April sees a minor shift in the average high-temperature, moving from a cold 37.6°F (3.1°C) in March to a frosty 46.2°F (7.9°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Donnelly, Idaho, with an average temperature ranging between max 57.7°F (14.3°C) and min 35.6°F (2°C). In Donnelly, stepping into May brings a temperature increase, moving up from April's frosty 46.2°F (7.9°C) to a mild 57.7°F (14.3°C). Weather in May »Weather in June
The first month of the summer, June, is an enjoyable month in Donnelly, Idaho, with temperature in the range of an average low of 42.1°F (5.6°C) and an average high of 66.2°F (19°C). June introduces a minor temperature shift, with average high-temperatures adjusting from May's mild 57.7°F (14.3°C) to an enjoyable 66.2°F (19°C). Weather in June »Weather in July
July in Donnelly, Idaho, is a warm summer month, with temperature in the range of an average low of 49.6°F (9.8°C) and an average high of 79.2°F (26.2°C). July, on average, is the warmest month, registering a high temperature of 79.2°F (26.2°C) and a low of 49.6°F (9.8°C). Weather in July »Weather in August
August, the last month of the summer in Donnelly, is another warm month, with an average temperature varying between 50°F (10°C) and 78.4°F (25.8°C). As Donnelly transitions from July to August, the average high-temperatures adjust to a still warm 78.4°F (25.8°C), nearly the same as the previous 79.2°F (26.2°C). Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Donnelly, Idaho, with an average temperature varying between 43.3°F (6.3°C) and 69.1°F (20.6°C). The average high-temperature decreases in September, shifting from a warm 78.4°F (25.8°C) in August to a pleasant 69.1°F (20.6°C). Weather in September »Weather in October
October, like September, in Donnelly, Idaho, is a cool autumn month, with temperature in the range of an average high of 52°F (11.1°C) and an average low of 32.9°F (0.5°C). October witnesses a clear temperature decrease, falling from an agreeable 69.1°F (20.6°C) in September to a fresh 52°F (11.1°C). Weather in October »Weather in November
The last month of the autumn, November, is also an icy month in Donnelly, Idaho, with an average temperature fluctuating between 23.2°F (-4.9°C) and 37.9°F (3.3°C). November's arrival corresponds with a decrease in average high-temperatures, from October's fresh 52°F (11.1°C) to a wintry 37.9°F (3.3°C). Weather in November »Weather in December
December, the first month of the winter in Donnelly, is also a subzero cold month, with an average temperature varying between 15.1°F (-9.4°C) and 28°F (-2.2°C). In Donnelly, December records the lowest average temperatures, peaking at 28°F (-2.2°C) and reaching a low of 15.1°F (-9.4°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Donnelly, ID
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is December (28°F).
The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).
Average pressure
Donnelly, ID
- Average pressure in January:
30.24"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
30"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.93"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.21"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Donnelly, ID
- Average wind speed in January:
4.2mph - Average wind speed in February:
4.8mph - Average wind speed in March:
5.3mph - Average wind speed in April:
5.3mph - Average wind speed in May:
5.1mph - Average wind speed in June:
4.9mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5.1mph - Average wind speed in September:
4.9mph - Average wind speed in October:
4.7mph - Average wind speed in November:
4.7mph - Average wind speed in December:
4.5mph
The windiest months (with the highest average wind speed) are March and April (5.3mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).
Average humidity
Donnelly, ID
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is August (42%).
Average rainfall
Donnelly, ID
- Average rainfall in January:
2.83" - Average rainfall in February:
2.83" - Average rainfall in March:
3.31" - Average rainfall in April:
2.2" - Average rainfall in May:
1.93" - Average rainfall in June:
1.69"
- Average rainfall in July:
0.31" - Average rainfall in August:
0.47" - Average rainfall in September:
0.79" - Average rainfall in October:
1.61" - Average rainfall in November:
1.73" - Average rainfall in December:
2.91"
The wettest month (with the highest rainfall) is March (3.31").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days
Donnelly, ID
- Average rainfall days in January:
4.1 days - Average rainfall days in February:
4.8 days - Average rainfall days in March:
10.4 days - Average rainfall days in April:
12.6 days - Average rainfall days in May:
14.4 days - Average rainfall days in June:
12.3 days
- Average rainfall days in July:
5.2 days - Average rainfall days in August:
4.9 days - Average rainfall days in September:
7.7 days - Average rainfall days in October:
10.1 days - Average rainfall days in November:
7 days - Average rainfall days in December:
4.6 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is January (4.1 days).
Average snowfall
Donnelly, ID
- Average snowfall in January:
23.07" - Average snowfall in February:
21.85" - Average snowfall in March:
18.5" - Average snowfall in April:
5.16" - Average snowfall in May:
1.42" - Average snowfall in June:
1.26"
The month with the highest snowfall is January (23.07").
The months with the least snowfall are July and August (0").
Average snowfall days
Donnelly, ID
- Average snowfall days in January:
16.2 days - Average snowfall days in February:
15.4 days - Average snowfall days in March:
17 days - Average snowfall days in April:
9.9 days - Average snowfall days in May:
2.8 days - Average snowfall days in June:
0.7 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.5 days - Average snowfall days in October:
3.5 days - Average snowfall days in November:
11.5 days - Average snowfall days in December:
16.3 days
The month with the highest number of snowfall days is March (17 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Donnelly, ID
- Average daylight in January:
9h and 18min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 48min - Average daylight in June:
15h and 30min
- 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:
11h and 0min - Average daylight in November:
9h and 36min - Average daylight in December:
8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January:
4h and 12min - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 6min - Average sunshine in April:
8h and 30min - Average sunshine in May:
10h and 12min - Average sunshine in June:
10h and 54min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 24min - Average sunshine in September:
9h and 18min - Average sunshine in October:
7h and 24min - Average sunshine in November:
5h and 42min - Average sunshine in December:
4h and 30min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days
Donnelly, ID
- Average sunshine days in January:
14.9 days - Average sunshine days in February:
11.9 days - Average sunshine days in March:
10.1 days - Average sunshine days in April:
10.9 days - Average sunshine days in May:
13.3 days - Average sunshine days in June:
15.2 days
- Average sunshine days in July:
23.8 days - Average sunshine days in August:
22.3 days - Average sunshine days in September:
20.4 days - Average sunshine days in October:
17.3 days - Average sunshine days in November:
14.4 days - Average sunshine days in December:
13.6 days
The month with the most sunshine days is July (23.8 days).
The month with the least sunshine days is March (10.1 days).
Average UV index
Donnelly, ID
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover
Donnelly, ID
The month with the most cloud cover is February (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility
Donnelly, ID
The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).





