Climate and monthly weather forecastGrassy Butte, ND
Climate and monthly weather forecast
Weather in January
January, the same as December, in Grassy Butte, North Dakota, is a freezing cold winter month, with an average temperature ranging between max 21.4°F (-5.9°C) and min 7.3°F (-13.7°C). January, with its high-temperature average of 21.4°F (-5.9°C) and a low-temperature average of 7.3°F (-13.7°C), is the coldest month. Weather in January »Weather in February
February, the last month of the winter in Grassy Butte, is also a subzero cold month, with temperature in the range of an average low of 7.7°F (-13.5°C) and an average high of 21.6°F (-5.8°C). Grassy Butte marks the onset of February with an average high-temperature of a still freezing cold 21.6°F (-5.8°C), subtly divergent from January's 21.4°F (-5.9°C). Weather in February »Weather in March
The first month of the spring, March, is a wintry month in Grassy Butte, North Dakota, with an average temperature fluctuating between 23°F (-5°C) and 37.9°F (3.3°C). March's onset is marked by a clear temperature increase, soaring from a freezing cold 21.6°F (-5.8°C) in February to an icy 37.9°F (3.3°C). Weather in March »Weather in April
April is a cool spring month in Grassy Butte, North Dakota, with an average temperature ranging between min 34.5°F (1.4°C) and max 51.3°F (10.7°C). Grassy Butte's transition into April brings a rise in the average high-temperature, moving from an icy 37.9°F (3.3°C) in March to a fresh 51.3°F (10.7°C). Weather in April »Weather in May
The last month of the spring, May, is an enjoyable month in Grassy Butte, North Dakota, with an average temperature varying between 46°F (7.8°C) and 64.6°F (18.1°C). The beginning of May signals a rise in the average high-temperature, moving from a fresh 51.3°F (10.7°C) in April to a refreshing 64.6°F (18.1°C). Weather in May »Weather in June
June, the first month of the summer in Grassy Butte, is a moderately hot month, with an average temperature fluctuating between 54.9°F (12.7°C) and 74.8°F (23.8°C). The shift from May to June brings an increase in the average high-temperature, moving from a comfortable 64.6°F (18.1°C) to a warm 74.8°F (23.8°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Grassy Butte, North Dakota, with temperature in the range of an average low of 61°F (16.1°C) and an average high of 83.1°F (28.4°C). In Grassy Butte, July is identified by the highest average temperatures, reaching a peak of 83.1°F (28.4°C) and a low of 61°F (16.1°C). The heat index value for July is estimated at 84.2°F (29°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Grassy Butte, North Dakota, with an average temperature varying between 81.9°F (27.7°C) and 60.4°F (15.8°C). August's weather displays an average high-temperature of a still moderately hot 81.9°F (27.7°C), slightly varied from July's 83.1°F (28.4°C). Weather in August »Weather in September
September, the first month of the autumn in Grassy Butte, is still a pleasant month, with an average temperature varying between 52.2°F (11.2°C) and 71.2°F (21.8°C). The onset of September introduces a moderate change in Grassy Butte's weather, with average high-temperatures falling from August's warm 81.9°F (27.7°C) to a pleasant 71.2°F (21.8°C). Weather in September »Weather in October
October, the same as September, is another fresh autumn month in Grassy Butte, North Dakota, with an average temperature fluctuating between 53.2°F (11.8°C) and 38.5°F (3.6°C). Grassy Butte's transition into October marks a considerable drop in the average high-temperature, moving down from an agreeable 71.2°F (21.8°C) in September to a fresh 53.2°F (11.8°C). Weather in October »Weather in November
November, the last month of the autumn in Grassy Butte, is another cold month, with an average temperature ranging between min 25.2°F (-3.8°C) and max 37.8°F (3.2°C). With the onset of November, Grassy Butte's average high-temperature experiences a noticeable drop, receding from October's fresh 53.2°F (11.8°C) to an icy 37.8°F (3.2°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Grassy Butte, North Dakota, with an average temperature ranging between min 11.3°F (-11.5°C) and max 23.2°F (-4.9°C). December is marked by a distinct decrease in the average high-temperature, falling from a cold 37.8°F (3.2°C) in November to a subzero cold 23.2°F (-4.9°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Grassy Butte, ND
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (21.4°F).
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (7.3°F).
Average pressure
Grassy Butte, ND
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.17"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.84"Hg
- Average pressure in July:
29.9"Hg - Average pressure in August:
29.89"Hg - Average pressure in September:
29.93"Hg - Average pressure in October:
29.97"Hg - Average pressure in November:
30.04"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed
Grassy Butte, ND
- Average wind speed in January:
10.3mph - Average wind speed in February:
9.1mph - Average wind speed in March:
10.1mph - Average wind speed in April:
11mph - Average wind speed in May:
10.3mph - Average wind speed in June:
9.9mph
- Average wind speed in July:
9.2mph - Average wind speed in August:
8.9mph - Average wind speed in September:
10mph - Average wind speed in October:
10.9mph - Average wind speed in November:
10.3mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is April (11mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).
Average humidity
Grassy Butte, ND
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (49%).
Average rainfall
Grassy Butte, ND
- Average rainfall in January:
0.43" - Average rainfall in February:
0.43" - Average rainfall in March:
0.63" - Average rainfall in April:
1.1" - Average rainfall in May:
1.73" - Average rainfall in June:
1.85"
- Average rainfall in July:
1.65" - Average rainfall in August:
1.26" - Average rainfall in September:
1.61" - Average rainfall in October:
0.83" - Average rainfall in November:
0.59" - Average rainfall in December:
0.51"
The wettest month (with the highest rainfall) is June (1.85").
The driest months (with the least rainfall) are January and February (0.43").
Average rainfall days
Grassy Butte, ND
- Average rainfall days in January:
3.3 days - Average rainfall days in February:
2.9 days - Average rainfall days in March:
6.7 days - Average rainfall days in April:
10.4 days - Average rainfall days in May:
11.8 days - Average rainfall days in June:
12.6 days
- Average rainfall days in July:
10.5 days - Average rainfall days in August:
10.2 days - Average rainfall days in September:
8.1 days - Average rainfall days in October:
7.7 days - Average rainfall days in November:
4.1 days - Average rainfall days in December:
3.3 days
The month with the highest number of rainy days is June (12.6 days).
The month with the least rainy days is February (2.9 days).
Average snowfall
Grassy Butte, ND
- Average snowfall in January:
2.6" - Average snowfall in February:
2.83" - Average snowfall in March:
2.52" - Average snowfall in April:
1.42" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is December (3.07").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Grassy Butte, ND
- Average snowfall days in January:
11.2 days - Average snowfall days in February:
11.1 days - Average snowfall days in March:
9.3 days - Average snowfall days in April:
4 days - Average snowfall days in May:
0.7 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:
2.9 days - Average snowfall days in November:
7.8 days - Average snowfall days in December:
11.2 days
The months with the highest number of snowfall days are January and December (11.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Grassy Butte, ND
- Average daylight in January:
9h and 0min - Average daylight in February:
10h and 18min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 42min - Average daylight in May:
15h and 6min - Average daylight in June:
15h and 54min
- Average daylight in July:
15h and 30min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 18min - Average daylight in December:
8h and 30min
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:
4h and 0min - Average sunshine in February:
4h and 54min - Average sunshine in March:
5h and 36min - Average sunshine in April:
7h and 42min - Average sunshine in May:
9h and 54min - Average sunshine in June:
10h and 48min
- Average sunshine in July:
11h and 36min - Average sunshine in August:
10h and 54min - Average sunshine in September:
8h and 42min - Average sunshine in October:
6h and 48min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 36min).
The months with the least sunshine are January and December (Average sunshine: 4h and 0min).
Average sunshine days
Grassy Butte, ND
- Average sunshine days in January:
18.4 days - Average sunshine days in February:
15.8 days - Average sunshine days in March:
16 days - Average sunshine days in April:
14.9 days - Average sunshine days in May:
17.1 days - Average sunshine days in June:
15.8 days
- Average sunshine days in July:
17.2 days - Average sunshine days in August:
18.3 days - Average sunshine days in September:
20.5 days - Average sunshine days in October:
20.4 days - Average sunshine days in November:
18.9 days - Average sunshine days in December:
18.4 days
The month with the most sunshine days is September (20.5 days).
The month with the least sunshine days is April (14.9 days).
Average UV index
Grassy Butte, ND
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover
Grassy Butte, ND
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 19).
Average visibility
Grassy Butte, ND
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).





