Climate and monthly weather forecastGrover, WY
Climate and monthly weather forecast
Weather in January
January, the same as December, in Grover, Wyoming, is another subzero cold winter month, with temperature in the range of an average low of 5.4°F (-14.8°C) and an average high of 25.5°F (-3.6°C). Grover's weather in January displays an average high-temperature of a still freezing cold 25.5°F (-3.6°C), showing minor disparity from December's 24.1°F (-4.4°C). Weather in January »Weather in February
February, the last month of the winter in Grover, is another freezing cold month, with an average temperature ranging between min 7.7°F (-13.5°C) and max 26.1°F (-3.3°C). During February, Grover records an average high-temperature of a still subzero cold 26.1°F (-3.3°C), marking a slight divergence from January's 25.5°F (-3.6°C). Weather in February »Weather in March
The first month of the spring, March, is an icy month in Grover, Wyoming, with an average temperature ranging between max 32.7°F (0.4°C) and min 15.1°F (-9.4°C). March's arrival signals a modest temperature shift, moving from a subzero cold 26.1°F (-3.3°C) in February to an icy 32.7°F (0.4°C). Weather in March »Weather in April
April, like March, in Grover, Wyoming, is another cold spring month, with an average temperature ranging between min 20.8°F (-6.2°C) and max 40.6°F (4.8°C). The shift into April is marked by a modest rise in the average high-temperature, moving from March's icy 32.7°F (0.4°C) to a still cold 40.6°F (4.8°C). Weather in April »Weather in May
The last month of the spring, May, is a cool month in Grover, Wyoming, with an average temperature fluctuating between 30.7°F (-0.7°C) and 53.8°F (12.1°C). May's onset is marked by a temperature increase, moving from an icy 40.6°F (4.8°C) in April to a cool 53.8°F (12.1°C). Weather in May »Weather in June
The first month of the summer, June, is a refreshing month in Grover, Wyoming, with an average temperature varying between 66°F (18.9°C) and 37.8°F (3.2°C). June's arrival sees a rise in the average high-temperature, jumping from May's cool 53.8°F (12.1°C) to a comfortable 66°F (18.9°C). Weather in June »Weather in July
July is a moderately hot summer month in Grover, Wyoming, with an average temperature fluctuating between 75.9°F (24.4°C) and 45.7°F (7.6°C). July is the month when Grover's temperatures reach their peak, with averages of 75.9°F (24.4°C) and lows of 45.7°F (7.6°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Grover, Wyoming, with temperature in the range of an average low of 45.3°F (7.4°C) and an average high of 74.8°F (23.8°C). Grover's transition from July to August introduces an average high-temperature of a still moderately hot 74.8°F (23.8°C), marking an insignificant variation from the 75.9°F (24.4°C). Weather in August »Weather in September
September, the first month of the autumn in Grover, is still a comfortable month, with an average temperature ranging between max 65.7°F (18.7°C) and min 39.7°F (4.3°C). As September begins, there is a decrease in the average high-temperature, falling from a moderately hot 74.8°F (23.8°C) in August to a refreshing 65.7°F (18.7°C). Weather in September »Weather in October
October, like September, is a frosty autumn month in Grover, Wyoming, with an average temperature fluctuating between 47.8°F (8.8°C) and 27.7°F (-2.4°C). A decrease in the average high-temperature marks October, falling from September's comfortable 65.7°F (18.7°C) to a chilly 47.8°F (8.8°C). Weather in October »Weather in November
November, the last month of the autumn in Grover, is also an icy month, with an average temperature fluctuating between 16.9°F (-8.4°C) and 34.7°F (1.5°C). The start of November comes with a reduction in the average high-temperature, receding from a frosty 47.8°F (8.8°C) in October to a wintry 34.7°F (1.5°C). Weather in November »Weather in December
The first month of the winter, December, is also a subzero cold month in Grover, Wyoming, with an average temperature ranging between max 24.1°F (-4.4°C) and min 6.6°F (-14.1°C). December, marked by an average high-temperature of 24.1°F (-4.4°C) and a low-temperature of 6.6°F (-14.1°C), is the coldest month. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Grover, WY
The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is December (24.1°F).
The month with the highest average low temperature is July (45.7°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure
Grover, WY
- Average pressure in January:
30.29"Hg - Average pressure in February:
30.16"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.16"Hg - Average pressure in December:
30.25"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Grover, WY
- Average wind speed in January:
4.2mph - Average wind speed in February:
4.9mph - Average wind speed in March:
4.8mph - Average wind speed in April:
5mph - Average wind speed in May:
5.1mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5.4mph - Average wind speed in September:
5.2mph - Average wind speed in October:
4.7mph - Average wind speed in November:
4.5mph - Average wind speed in December:
4.2mph
The windiest month (with the highest average wind speed) is June (5.7mph).
The calmest months (with the lowest average wind speed) are January and December (4.2mph).
Average humidity
Grover, WY
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is August (45%).
Average rainfall
Grover, WY
- Average rainfall in January:
2.32" - Average rainfall in February:
2.72" - Average rainfall in March:
2.13" - Average rainfall in April:
2.48" - Average rainfall in May:
2.56" - Average rainfall in June:
1.73"
The wettest month (with the highest rainfall) is February (2.72").
The driest months (with the least rainfall) are July and August (0.63").
Average rainfall days
Grover, WY
- Average rainfall days in January:
4.7 days - Average rainfall days in February:
5.9 days - Average rainfall days in March:
10.7 days - Average rainfall days in April:
12.3 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
11.8 days
- Average rainfall days in July:
7.6 days - Average rainfall days in August:
8.4 days - Average rainfall days in September:
9.4 days - Average rainfall days in October:
9.2 days - Average rainfall days in November:
6.5 days - Average rainfall days in December:
6.2 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (4.7 days).
Average snowfall
Grover, WY
- Average snowfall in January:
19.06" - Average snowfall in February:
19.96" - Average snowfall in March:
15.2" - Average snowfall in April:
12.52" - Average snowfall in May:
4.65" - Average snowfall in June:
0.71"
The month with the highest snowfall is February (19.96").
The months with the least snowfall are July and August (0").
Average snowfall days
Grover, WY
- Average snowfall days in January:
19.7 days - Average snowfall days in February:
21.4 days - Average snowfall days in March:
20.3 days - Average snowfall days in April:
14.8 days - Average snowfall days in May:
5.1 days - Average snowfall days in June:
1 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
1 days - Average snowfall days in October:
7.8 days - Average snowfall days in November:
14.1 days - Average snowfall days in December:
21.7 days
The month with the highest number of snowfall days is December (21.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Grover, WY
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 42min - Average daylight in June:
15h and 18min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
4h and 30min - Average sunshine in February:
4h and 12min - Average sunshine in March:
5h and 36min - Average sunshine in April:
8h and 18min - Average sunshine in May:
10h and 18min - Average sunshine in June:
11h and 12min
- Average sunshine in July:
11h and 54min - Average sunshine in August:
11h and 48min - Average sunshine in September:
10h and 6min - Average sunshine in October:
6h and 48min - Average sunshine in November:
6h and 0min - Average sunshine in December:
4h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days
Grover, WY
- Average sunshine days in January:
11.5 days - Average sunshine days in February:
7.2 days - Average sunshine days in March:
7.6 days - Average sunshine days in April:
7 days - Average sunshine days in May:
8.3 days - Average sunshine days in June:
14.1 days
- Average sunshine days in July:
18.8 days - Average sunshine days in August:
17.7 days - Average sunshine days in September:
17.5 days - Average sunshine days in October:
16.8 days - Average sunshine days in November:
14.4 days - Average sunshine days in December:
9.5 days
The month with the most sunshine days is July (18.8 days).
The month with the least sunshine days is April (7 days).
Average UV index
Grover, WY
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover
Grover, WY
The month with the most cloud cover is February (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility
Grover, WY
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (3mi).





