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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Harrison, Idaho, is a wintry winter month, with an average temperature varying between 33.6°F (0.9°C) and 22.5°F (-5.3°C). An average high-temperature of a still wintry 33.6°F (0.9°C) marks January, exhibiting a close resemblance to the conditions in December. Weather in January »
Weather in February
February, the last month of the winter in Harrison, is also an icy month, with an average temperature fluctuating between 23.5°F (-4.7°C) and 36.1°F (2.3°C). The shift into February finds Harrison at an average high-temperature of a still wintry 36.1°F (2.3°C), closely comparable to January's conditions. Weather in February »
Weather in March
March, the first month of the spring in Harrison, is a chilly month, with an average temperature ranging between min 28.9°F (-1.7°C) and max 43.3°F (6.3°C). March's onset brings a minor rise in the average high-temperature, moving from a cold 36.1°F (2.3°C) in February to a chilly 43.3°F (6.3°C). Weather in March »
Weather in April
April in Harrison, Idaho, is a fresh spring month, with an average temperature ranging between max 52.9°F (11.6°C) and min 33.3°F (0.7°C). As Harrison transitions into April, the average high-temperature shows a change, moving from a frosty 43.3°F (6.3°C) in March to a fresh 52.9°F (11.6°C). Weather in April »
Weather in May
May, the last month of the spring in Harrison, is an enjoyable month, with an average temperature varying between 39.7°F (4.3°C) and 64.2°F (17.9°C). May's arrival brings a change in high-temperatures, moving from a cool 52.9°F (11.6°C) in April to an enjoyable 64.2°F (17.9°C). Weather in May »
Weather in June
June, the first month of the summer in Harrison, is an agreeable month, with an average temperature fluctuating between 45°F (7.2°C) and 69.6°F (20.9°C). A soft shift in the average high-temperature is noticeable in June, transitioning from a refreshing 64.2°F (17.9°C) in May to an agreeable 69.6°F (20.9°C). Weather in June »
Weather in July
July in Harrison, Idaho, is a warm summer month, with temperature in the range of an average low of 51.6°F (10.9°C) and an average high of 81°F (27.2°C). Harrison sees an increase in average high-temperatures during July, moving from an agreeable 69.6°F (20.9°C) in June to a moderately hot 81°F (27.2°C). Weather in July »
Weather in August
August, the last month of the summer in Harrison, is another warm month, with an average temperature varying between 52.9°F (11.6°C) and 81.5°F (27.5°C). August is the warmest month of the year, registering average temperatures as high as 81.5°F (27.5°C) and as low as 52.9°F (11.6°C). August's average heat index is calculated to be 82.4°F (28°C). Weather in August »
Weather in September
September, the first month of the autumn in Harrison, is also an agreeable month, with an average temperature varying between 46°F (7.8°C) and 71.1°F (21.7°C). With September's onset, the weather shows a temperature decrease, transitioning from a warm 81.5°F (27.5°C) in August to an agreeable 71.1°F (21.7°C). Weather in September »
Weather in October
October, like September, in Harrison, Idaho, is a cool autumn month, with an average temperature ranging between max 55°F (12.8°C) and min 36.9°F (2.7°C). October is characterized by a clear drop in the average high-temperature, falling from September's pleasant 71.1°F (21.7°C) to a cool 55°F (12.8°C). Weather in October »
Weather in November
The last month of the autumn, November, is also an icy month in Harrison, Idaho, with temperature in the range of an average high of 41°F (5°C) and an average low of 29.3°F (-1.5°C). November's onset brings a reduction in the average high-temperature, from a fresh 55°F (12.8°C) in October to an icy 41°F (5°C). Weather in November »
Weather in December
December, the first month of the winter in Harrison, is also a wintry month, with an average temperature ranging between min 22.1°F (-5.5°C) and max 32.2°F (0.1°C). Harrison's temperature records reveal December as the coldest month, marked by average highs of 32.2°F (0.1°C) and lows of 22.1°F (-5.5°C). Weather in December »
Updated: Jun 6, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the most humid month in Harrison?
With an average relative humidity of 92%, January is the most humid month.
What is the wettest month?
January is the month with the most rainfall. Rain falls for 12.3 days and accumulates 3.39" (86mm) of precipitation.
How much does it rain in Harrison?
In Harrison, during the entire year, the rain falls for 148.8 days and collects up to 23.86" (606mm) of precipitation.
When does it snow?
Months with snowfall are January through May, September through December.
What is the snowiest month?
January is the month with the most snowfall. Snow falls for 15.6 days and accumulates 15.2" (386mm) of snow.
How many days does it snow?
Throughout the year, there are 67.9 snowfall days, and 53.5" (1359mm) of snow is accumulated.
When is the lowest UV index?
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index.
When is Daylight Saving Time (DST)?
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.
When it does not snow?
In Harrison, snow does not fall in June through August.
When are the longest days?
June has the longest days of the year in Harrison, with an average of 15h and 54min of daylight.
What is the driest month?
The month with the least rainfall in Harrison is July, when the rain falls for 6 days and typically collects 0.43" (11mm) of precipitation.
What is the month with the highest UV index?
The month with the highest UV index is July, with an average maximum UV index of 6.
What are the warmest months?
August stands out as Harrison's warmest month, with an average high-temperature of 81.5°F (27.5°C) and a low-temperature of 52.9°F (11.6°C).
What is the least humid month?
The least humid month is August, with an average relative humidity of 47%.
What month has the most sunshine?
The month with the most sunshine is August, with an average of 11.9h of sunshine.
What are the coldest months?
December is Harrison's coldest month, registering average high temperatures of 32.2°F (0.1°C) and lows of 22.1°F (-5.5°C).
What is the month with the shortest days?
The month with the shortest days is December, with an average of 8h and 30min of daylight.
What is the month with the least sunshine?
With an average of 3.4h of sunshine, December has the least sunshine of the year in Harrison.
Average temperature
Harrison, ID
The warmest month (with the highest average high temperature) is August (81.5°F).
The month with the lowest average high temperature is December (32.2°F).
The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is December (22.1°F).
Average pressure
Harrison, ID
- Average pressure in January:
30.19"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.17"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed
Harrison, ID
- Average wind speed in January:
4.4mph - Average wind speed in February:
4.7mph - Average wind speed in March:
5.2mph - Average wind speed in April:
5.4mph - Average wind speed in May:
4.8mph - Average wind speed in June:
4.8mph
- Average wind speed in July:
4.5mph - Average wind speed in August:
4.3mph - Average wind speed in September:
4.3mph - Average wind speed in October:
4.5mph - Average wind speed in November:
4.6mph - Average wind speed in December:
4.3mph
The windiest month (with the highest average wind speed) is April (5.4mph).
The calmest months (with the lowest average wind speed) are August, September and December (4.3mph).
Average humidity
Harrison, ID
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (47%).
Average rainfall
Harrison, ID
- Average rainfall in January:
3.39" - Average rainfall in February:
2.32" - Average rainfall in March:
2.87" - Average rainfall in April:
2.09" - Average rainfall in May:
2.01" - Average rainfall in June:
1.73"
- Average rainfall in July:
0.43" - Average rainfall in August:
0.47" - Average rainfall in September:
0.87" - Average rainfall in October:
2.2" - Average rainfall in November:
2.36" - Average rainfall in December:
3.11"
The wettest month (with the highest rainfall) is January (3.39").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days
Harrison, ID
- Average rainfall days in January:
12.3 days - Average rainfall days in February:
11.8 days - Average rainfall days in March:
18.6 days - Average rainfall days in April:
18.2 days - Average rainfall days in May:
15.5 days - Average rainfall days in June:
13.3 days
- Average rainfall days in July:
6 days - Average rainfall days in August:
5.6 days - Average rainfall days in September:
8.6 days - Average rainfall days in October:
13.3 days - Average rainfall days in November:
15 days - Average rainfall days in December:
10.6 days
The month with the highest number of rainy days is March (18.6 days).
The month with the least rainy days is August (5.6 days).
Average snowfall
Harrison, ID
- Average snowfall in January:
15.2" - Average snowfall in February:
12.48" - Average snowfall in March:
6.93" - Average snowfall in April:
1.65" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is January (15.2").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Harrison, ID
- Average snowfall days in January:
15.6 days - Average snowfall days in February:
14.4 days - Average snowfall days in March:
9.3 days - Average snowfall days in April:
3.5 days - Average snowfall days in May:
0.3 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:
0.2 days - Average snowfall days in October:
0.8 days - Average snowfall days in November:
7.2 days - Average snowfall days in December:
16.6 days
The month with the highest number of snowfall days is December (16.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Harrison, ID
- Average daylight in January:
9h and 0min - Average daylight in February:
10h and 2min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 4min - Average daylight in May:
15h and 1min - Average daylight in June:
15h and 5min
- Average daylight in July:
15h and 3min - Average daylight in August:
14h and 1min - Average daylight in September:
12h and 3min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 2min - Average daylight in December:
8h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in January:
3h and 4min - Average sunshine in February:
3h and 4min - Average sunshine in March:
5h and 2min - Average sunshine in April:
8h and 2min - Average sunshine in May:
9h and 4min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
11h and 4min - Average sunshine in August:
11h and 5min - Average sunshine in September:
9h and 4min - Average sunshine in October:
6h and 1min - Average sunshine in November:
4h and 2min - Average sunshine in December:
3h and 2min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days
Harrison, ID
- Average sunshine days in January:
10.6 days - Average sunshine days in February:
7.6 days - Average sunshine days in March:
7.8 days - Average sunshine days in April:
8.9 days - Average sunshine days in May:
13.1 days - Average sunshine days in June:
15.3 days
- Average sunshine days in July:
22.8 days - Average sunshine days in August:
22.4 days - Average sunshine days in September:
19.5 days - Average sunshine days in October:
15.5 days - Average sunshine days in November:
10.1 days - Average sunshine days in December:
10 days
The month with the most sunshine days is July (22.8 days).
The month with the least sunshine days is February (7.6 days).
Average UV index
Harrison, ID
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Harrison, ID
The months with the most cloud cover are January and December (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility
Harrison, ID
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Harrison, Idaho, USA
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