Climate and monthly weather forecastFlat Rock, ID
Climate and monthly weather forecast
Weather in January
January, the same as December, in Flat Rock, Idaho, is another subzero cold winter month, with an average temperature ranging between max 24.1°F (-4.4°C) and min 6.8°F (-14°C). Flat Rock observes an average high-temperature of a still subzero cold 24.1°F (-4.4°C) in January, barely different from 22.3°F (-5.4°C) in December. Weather in January »Weather in February
February, the last month of the winter in Flat Rock, is another freezing cold month, with temperature in the range of an average low of 9.7°F (-12.4°C) and an average high of 25.2°F (-3.8°C). The commencement of February records an average high-temperature of a still subzero cold 25.2°F (-3.8°C), barely varying from January's 24.1°F (-4.4°C). Weather in February »Weather in March
The first month of the spring, March, is a wintry month in Flat Rock, Idaho, with an average temperature varying between 32.9°F (0.5°C) and 16.9°F (-8.4°C). Flat Rock's weather shows a minor temperature rise with the arrival of March, moving from a freezing cold 25.2°F (-3.8°C) in February to a cold 32.9°F (0.5°C). Weather in March »Weather in April
April, the same as March, is a wintry spring month in Flat Rock, Idaho, with an average temperature fluctuating between 42.4°F (5.8°C) and 23.9°F (-4.5°C). The shift from March to April sees an increase in the average high-temperature, transitioning from a wintry 32.9°F (0.5°C) to a still cold 42.4°F (5.8°C). Weather in April »Weather in May
May, the last month of the spring in Flat Rock, is a refreshing month, with temperature in the range of an average low of 33.3°F (0.7°C) and an average high of 55.9°F (13.3°C). May's onset brings a rise in the average high-temperature, moving from a cold 42.4°F (5.8°C) in April to a moderate 55.9°F (13.3°C). Weather in May »Weather in June
June, the first month of the summer in Flat Rock, is a refreshing month, with temperature in the range of an average low of 39.4°F (4.1°C) and an average high of 66°F (18.9°C). The transition from May to June brings a temperature rise, with average high-temperatures increasing from a moderate 55.9°F (13.3°C) to an enjoyable 66°F (18.9°C). Weather in June »Weather in July
July is a moderately hot summer month in Flat Rock, Idaho, with an average temperature varying between 77.4°F (25.2°C) and 46°F (7.8°C). July is the warmest month, exhibiting average temperatures of 77.4°F (25.2°C) at the peak and 46°F (7.8°C) at the base. Weather in July »Weather in August
The last month of the summer, August, is another warm month in Flat Rock, Idaho, with temperature in the range of an average high of 75.7°F (24.3°C) and an average low of 46.6°F (8.1°C). Transitioning into August, Flat Rock experiences an average high-temperature of a still moderately hot 75.7°F (24.3°C), marking a minor shift from the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Flat Rock, is still a refreshing month, with an average temperature fluctuating between 65.8°F (18.8°C) and 40.1°F (4.5°C). The transition into September involves a decrease in the average high-temperature, falling from a warm 75.7°F (24.3°C) in August to a comfortable 65.8°F (18.8°C). Weather in September »Weather in October
October, the same as September, in Flat Rock, Idaho, is another chilly autumn month, with an average temperature fluctuating between 28.9°F (-1.7°C) and 47.8°F (8.8°C). With the onset of October, Flat Rock's average high-temperature witnesses a clear drop, receding from September's comfortable 65.8°F (18.8°C) to a chilly 47.8°F (8.8°C). Weather in October »Weather in November
The last month of the autumn, November, is also a wintry month in Flat Rock, Idaho, with an average temperature ranging between max 33.1°F (0.6°C) and min 17.2°F (-8.2°C). A noticeable downshift in temperatures is seen as October gives way to November, with average highs moving from a chilly 47.8°F (8.8°C) to a wintry 33.1°F (0.6°C). Weather in November »Weather in December
The first month of the winter, December, is also a subzero cold month in Flat Rock, Idaho, with an average temperature varying between 6.8°F (-14°C) and 22.3°F (-5.4°C). With average high temperatures of 22.3°F (-5.4°C) and lows of 6.8°F (-14°C), December is the coldest month. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Flat Rock, ID
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is December (22.3°F).
The month with the highest average low temperature is August (46.6°F).
The coldest months (with the lowest average low temperature) are January and December (6.8°F).
Average pressure
Flat Rock, ID
- Average pressure in January:
30.26"Hg - Average pressure in February:
30.15"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.16"Hg - Average pressure in December:
30.24"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Flat Rock, ID
- Average wind speed in January:
4.4mph - Average wind speed in February:
5.2mph - Average wind speed in March:
5.3mph - Average wind speed in April:
5.8mph - Average wind speed in May:
6mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.6mph - Average wind speed in September:
5.5mph - Average wind speed in October:
5.2mph - Average wind speed in November:
4.8mph - Average wind speed in December:
4.5mph
The windiest month (with the highest average wind speed) is June (6.3mph).
The calmest month (with the lowest average wind speed) is January (4.4mph).
Average humidity
Flat Rock, ID
The months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is August (47%).
Average rainfall
Flat Rock, ID
- Average rainfall in January:
2.36" - Average rainfall in February:
2.64" - Average rainfall in March:
2.2" - Average rainfall in April:
2.48" - Average rainfall in May:
2.2" - Average rainfall in June:
2.01"
- Average rainfall in July:
0.47" - Average rainfall in August:
0.71" - Average rainfall in September:
1.14" - Average rainfall in October:
1.26" - Average rainfall in November:
1.38" - Average rainfall in December:
1.97"
The wettest month (with the highest rainfall) is February (2.64").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days
Flat Rock, ID
- Average rainfall days in January:
3.8 days - Average rainfall days in February:
5.2 days - Average rainfall days in March:
9.8 days - Average rainfall days in April:
14.4 days - Average rainfall days in May:
17 days - Average rainfall days in June:
13.2 days
- Average rainfall days in July:
6.8 days - Average rainfall days in August:
8 days - Average rainfall days in September:
7.9 days - Average rainfall days in October:
8.4 days - Average rainfall days in November:
6.2 days - Average rainfall days in December:
5.4 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (3.8 days).
Average snowfall
Flat Rock, ID
- Average snowfall in January:
19.84" - Average snowfall in February:
19.76" - Average snowfall in March:
16.69" - Average snowfall in April:
12.64" - Average snowfall in May:
4.8" - Average snowfall in June:
0.94"
The month with the highest snowfall is January (19.84").
The month with the least snowfall is August (0").
Average snowfall days
Flat Rock, ID
- Average snowfall days in January:
21.8 days - Average snowfall days in February:
22.6 days - Average snowfall days in March:
22.8 days - Average snowfall days in April:
16.6 days - Average snowfall days in May:
5.7 days - Average snowfall days in June:
1.3 days
- Average snowfall days in July:
0.1 days - Average snowfall days in August:
0 days - Average snowfall days in September:
1.2 days - Average snowfall days in October:
6.5 days - Average snowfall days in November:
16.5 days - Average snowfall days in December:
23 days
The month with the highest number of snowfall days is December (23 days).
The month with the least snowfall days is August (0 days).
Average daylight / Average sunshine
Flat Rock, 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 6min - 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:
3h and 48min - Average sunshine in February:
4h and 6min - Average sunshine in March:
5h and 36min - Average sunshine in April:
8h and 42min - Average sunshine in May:
10h and 18min - Average sunshine in June:
10h and 54min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 36min - Average sunshine in September:
9h and 54min - Average sunshine in October:
6h and 48min - Average sunshine in November:
5h and 42min - Average sunshine in December:
4h and 12min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Flat Rock, ID
- Average sunshine days in January:
9.5 days - Average sunshine days in February:
5.9 days - Average sunshine days in March:
6.8 days - Average sunshine days in April:
6.7 days - Average sunshine days in May:
9.3 days - Average sunshine days in June:
13.7 days
- Average sunshine days in July:
21.2 days - Average sunshine days in August:
20.3 days - Average sunshine days in September:
19.3 days - Average sunshine days in October:
17.5 days - Average sunshine days in November:
13.1 days - Average sunshine days in December:
7.7 days
The month with the most sunshine days is July (21.2 days).
The month with the least sunshine days is February (5.9 days).
Average UV index
Flat Rock, ID
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 1).
Average cloud cover
Flat Rock, ID
The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 13).
Average visibility
Flat Rock, 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 and December (3mi).





