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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 Grasmere, Idaho, is an icy winter month, with an average temperature ranging between min 26.6°F (-3°C) and max 37.9°F (3.3°C). As December transitions into January, the average high-temperature rests at a still icy 37.9°F (3.3°C), maintaining a close resemblance to the previous month. Weather in January »
Weather in February
February, the last month of the winter in Grasmere, is a chilly month, with an average temperature varying between 43.2°F (6.2°C) and 30.4°F (-0.9°C). As January transitions into February, Grasmere records an average high-temperature of a frosty 43.2°F (6.2°C), showing a gentle shift from the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Grasmere, is a cool month, with an average temperature ranging between min 37°F (2.8°C) and max 52.9°F (11.6°C). The arrival of March brings a change in Grasmere's weather, with average high-temperatures moving from February's frosty 43.2°F (6.2°C) to a cool 52.9°F (11.6°C). Weather in March »
Weather in April
April is a mild spring month in Grasmere, Idaho, with an average temperature fluctuating between 41.5°F (5.3°C) and 59.9°F (15.5°C). April introduces a minor temperature shift, with average high-temperatures adjusting from March's cool 52.9°F (11.6°C) to a moderate 59.9°F (15.5°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Grasmere, Idaho, with temperature in the range of an average high of 70.5°F (21.4°C) and an average low of 49.1°F (9.5°C). As Grasmere welcomes May, the average high-temperature sees a rise, transitioning from a moderate 59.9°F (15.5°C) in April to a pleasant 70.5°F (21.4°C). Weather in May »
Weather in June
June, the first month of the summer in Grasmere, is a warm month, with an average temperature fluctuating between 57°F (13.9°C) and 79.9°F (26.6°C). As June sets, the average high-temperature shows an increase, moving up from a pleasant 70.5°F (21.4°C) in May to a moderately hot 79.9°F (26.6°C). Weather in June »
Weather in July
July is a tropical summer month in Grasmere, Idaho, with an average temperature ranging between min 66.4°F (19.1°C) and max 91.2°F (32.9°C). July is the month when Grasmere's temperatures reach their peak, with averages of 91.2°F (32.9°C) and lows of 66.4°F (19.1°C). Weather in July »
Weather in August
August, the last month of the summer in Grasmere, is another tropical month, with an average temperature fluctuating between 65.7°F (18.7°C) and 89.4°F (31.9°C). On the advent of August, Grasmere's average high-temperature exhibits a minor adjustment to a still tropical 89.4°F (31.9°C) from July's 91.2°F (32.9°C). Weather in August »
Weather in September
September, the first month of the autumn in Grasmere, is also a moderately hot month, with an average temperature varying between 79.2°F (26.2°C) and 57.7°F (14.3°C). Grasmere observes a minor decrease in the average high-temperature with the arrival of September, falling from August's hot 89.4°F (31.9°C) to a moderately hot 79.2°F (26.2°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Grasmere, Idaho, with an average temperature varying between 62.2°F (16.8°C) and 45.1°F (7.3°C). A notable decrease in the average high-temperature is observed during October, falling from a warm 79.2°F (26.2°C) in September to a refreshing 62.2°F (16.8°C). Weather in October »
Weather in November
November, the last month of the autumn in Grasmere, is also a frosty month, with an average temperature fluctuating between 48.9°F (9.4°C) and 34.3°F (1.3°C). The onset of November brings a small change in high-temperatures, falling from a comfortable 62.2°F (16.8°C) in October to a chilly 48.9°F (9.4°C). Weather in November »
Weather in December
December, the first month of the winter in Grasmere, is still a cold month, with an average temperature varying between 26.1°F (-3.3°C) and 36.7°F (2.6°C). December stands out as Grasmere's coldest month, with temperatures ranging between an average high of 36.7°F (2.6°C) and a low of 26.1°F (-3.3°C). Weather in December »
Updated: Aug 24, 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?
The most humid month is January, with an average relative humidity of 75%.
How many days does it rain?
Throughout the year, there are 100.2 rainfall days, and 7.48" (190mm) of precipitation is accumulated.
When does it snow?
January through April, October through December are months with snowfall.
How many days does it snow?
In Grasmere, during the entire year, snow falls for 17.1 days and aggregates up to 6.34" (161mm) of snow.
When is the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
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 MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.
When it does not snow?
May through September are months without snowfall.
When are the longest days?
June has the longest days of the year, with an average of 15h and 12min of daylight.
What month is the hottest in Grasmere?
Grasmere reaches its average highest temperatures in July, measuring 91.2°F (32.9°C) at the peak and 66.4°F (19.1°C) at the lowest.
What is the least humid month?
With an average relative humidity of 25%, July is the least humid month.
What month has the most sunshine?
July has the most sunshine of the year, with an average of 12.1h of sunshine.
When is the highest UV index?
July is the month with the highest UV index, with an average maximum UV index of 7.
What is the driest month?
August is the month with the least rainfall. Rain falls for 3.7 days and accumulates 0.2" (5mm) of precipitation.
What is the coldest time of year?
Grasmere reaches its average lowest temperatures in December, measuring 36.7°F (2.6°C) at the peak and 26.1°F (-3.3°C) at the lowest.
What is the rainiest month?
December is the month with the most rainfall. Rain falls for 9.6 days and accumulates 1.06" (27mm) of precipitation.
When does it snow the most?
The month with the most snowfall is December, when snow falls for 5.5 days and typically aggregates up to 2.64" (67mm) of snow.
What is the month with the shortest days?
With an average of 9h and 6min of daylight, December has the shortest days of the year.
What is the month with the least sunshine?
The month with the least sunshine is December, with an average of 6.2h of sunshine.
Average temperature
Grasmere, ID
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is December (36.7°F).
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is December (26.1°F).
Average pressure
Grasmere, ID
- Average pressure in January:
30.26"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.9"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.89"Hg - Average pressure in August:
29.88"Hg - Average pressure in September:
29.93"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.22"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The months with the lowest atmospheric pressure are June and August (29.88"Hg).
Average wind speed
Grasmere, ID
- Average wind speed in January:
6.5mph - Average wind speed in February:
7.6mph - Average wind speed in March:
8.1mph - Average wind speed in April:
8.8mph - Average wind speed in May:
8mph - Average wind speed in June:
7.9mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
6.6mph - Average wind speed in September:
6.5mph - Average wind speed in October:
6.6mph - Average wind speed in November:
7.1mph - Average wind speed in December:
7mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest months (with the lowest average wind speed) are January and September (6.5mph).
Average humidity
Grasmere, ID
The month with the highest relative humidity is January (75%).
The month with the lowest relative humidity is July (25%).
Average rainfall
Grasmere, ID
- Average rainfall in January:
0.98" - Average rainfall in February:
0.71" - Average rainfall in March:
0.87" - Average rainfall in April:
0.75" - Average rainfall in May:
0.71" - Average rainfall in June:
0.63"
- Average rainfall in July:
0.24" - Average rainfall in August:
0.2" - Average rainfall in September:
0.24" - Average rainfall in October:
0.51" - Average rainfall in November:
0.59" - Average rainfall in December:
1.06"
The wettest month (with the highest rainfall) is December (1.06").
The driest month (with the least rainfall) is August (0.2").
Average rainfall days
Grasmere, ID
- Average rainfall days in January:
10.3 days - Average rainfall days in February:
8.7 days - Average rainfall days in March:
14.3 days - Average rainfall days in April:
10.8 days - Average rainfall days in May:
10.4 days - Average rainfall days in June:
7.5 days
- Average rainfall days in July:
3.7 days - Average rainfall days in August:
3.7 days - Average rainfall days in September:
5.5 days - Average rainfall days in October:
7.2 days - Average rainfall days in November:
8.5 days - Average rainfall days in December:
9.6 days
The month with the highest number of rainy days is March (14.3 days).
The months with the least rainy days are July and August (3.7 days).
Average snowfall
Grasmere, ID
The month with the highest snowfall is December (2.64").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Grasmere, ID
- Average snowfall days in January:
3.8 days - Average snowfall days in February:
4.2 days - Average snowfall days in March:
1.5 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:
0.2 days - Average snowfall days in November:
1.6 days - Average snowfall days in December:
5.5 days
The month with the highest number of snowfall days is December (5.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Grasmere, ID
- Average daylight in January:
9h and 3min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
6h and 2min - Average sunshine in February:
8h and 1min - Average sunshine in March:
8h and 4min - Average sunshine in April:
9h and 5min - Average sunshine in May:
11h and 3min - Average sunshine in June:
11h and 5min
- Average sunshine in July:
12h and 1min - Average sunshine in August:
11h and 2min - Average sunshine in September:
9h and 4min - Average sunshine in October:
8h and 1min - Average sunshine in November:
6h and 5min - Average sunshine in December:
6h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).
Average sunshine days
Grasmere, ID
- Average sunshine days in January:
18.1 days - Average sunshine days in February:
16.1 days - Average sunshine days in March:
13.6 days - Average sunshine days in April:
15.8 days - Average sunshine days in May:
17.4 days - Average sunshine days in June:
19.8 days
- Average sunshine days in July:
24 days - Average sunshine days in August:
22.1 days - Average sunshine days in September:
22.2 days - Average sunshine days in October:
21.8 days - Average sunshine days in November:
19.6 days - Average sunshine days in December:
18.4 days
The month with the most sunshine days is July (24 days).
The month with the least sunshine days is March (13.6 days).
Average UV index
Grasmere, ID
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Grasmere, ID
The month with the most cloud cover is December (Cloud cover 35).
The months with the least cloud cover are July and August (Cloud cover 8).
Average visibility
Grasmere, ID
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).
Grasmere, Idaho, USA
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