Climate and monthly weather forecastCastle Rock, MN
Climate and monthly weather forecast
Weather in January
January, the same as December, in Castle Rock, Minnesota, is a freezing cold winter month, with temperature in the range of an average low of 7.7°F (-13.5°C) and an average high of 20.8°F (-6.2°C). Castle Rock experiences its lowest average temperatures in January, reaching a peak of 20.8°F (-6.2°C) and a minimum of 7.7°F (-13.5°C). Weather in January »Weather in February
February, the last month of the winter in Castle Rock, is also a subzero cold month, with an average temperature fluctuating between 10.6°F (-11.9°C) and 24.6°F (-4.1°C). Castle Rock experiences an average high-temperature of a still freezing cold 24.6°F (-4.1°C) in February, subtly different from January's 20.8°F (-6.2°C). Weather in February »Weather in March
March, the first month of the spring in Castle Rock, is a cold month, with an average temperature ranging between max 39.4°F (4.1°C) and min 25.3°F (-3.7°C). March signals a clear increase in the average high-temperature, soaring from February's freezing cold 24.6°F (-4.1°C) to an icy 39.4°F (4.1°C). Weather in March »Weather in April
April is a fresh spring month in Castle Rock, Minnesota, with an average temperature varying between 52.9°F (11.6°C) and 37.2°F (2.9°C). As Castle Rock, Minnesota, transitions into April, the average high-temperature shows a change, moving from a wintry 39.4°F (4.1°C) in March to a fresh 52.9°F (11.6°C). Weather in April »Weather in May
The last month of the spring, May, is an enjoyable month in Castle Rock, Minnesota, with an average temperature ranging between min 49.1°F (9.5°C) and max 65.8°F (18.8°C). In May, the average high-temperature increases from a fresh 52.9°F (11.6°C) in April to a refreshing 65.8°F (18.8°C). Weather in May »Weather in June
June, the first month of the summer in Castle Rock, is a moderately hot month, with an average temperature varying between 58.8°F (14.9°C) and 75.4°F (24.1°C). The arrival of June brings a temperature shift, with the average high-temperature escalating from an enjoyable 65.8°F (18.8°C) in May to a moderately hot 75.4°F (24.1°C). Weather in June »Weather in July
July, like June, in Castle Rock, Minnesota, is another warm summer month, with temperature in the range of an average low of 62.4°F (16.9°C) and an average high of 79.5°F (26.4°C). July is the warmest month, with an average high-temperature of 79.5°F (26.4°C) and an average low-temperature of 62.4°F (16.9°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Castle Rock, Minnesota, with an average temperature varying between 77.5°F (25.3°C) and 59.4°F (15.2°C). The advent of August brings an average high-temperature of a still moderately hot 77.5°F (25.3°C), exhibiting minor difference from the previous month. Weather in August »Weather in September
September, the first month of the autumn in Castle Rock, is also an agreeable month, with an average temperature varying between 52.5°F (11.4°C) and 71.1°F (21.7°C). In Castle Rock, the average high-temperature in September gently drops from a moderately hot 77.5°F (25.3°C) in August to a pleasant 71.1°F (21.7°C). Weather in September »Weather in October
October, the same as September, in Castle Rock, Minnesota, is another refreshing autumn month, with an average temperature fluctuating between 41°F (5°C) and 55.6°F (13.1°C). October brings a significant decrease in the average high-temperature, moving down from a pleasant 71.1°F (21.7°C) in September to a mild 55.6°F (13.1°C). Weather in October »Weather in November
The last month of the autumn, November, is also a wintry month in Castle Rock, Minnesota, with an average temperature ranging between min 28.8°F (-1.8°C) and max 41°F (5°C). With the beginning of November, Castle Rock's average high-temperature experiences a significant decrease, moving from a refreshing 55.6°F (13.1°C) in October to an icy 41°F (5°C). Weather in November »Weather in December
The first month of the winter, December, is also a subzero cold month in Castle Rock, Minnesota, with an average temperature fluctuating between 26.1°F (-3.3°C) and 15.4°F (-9.2°C). The start of December signals a clear decrease in the average high-temperature, falling from a cold 41°F (5°C) in November to a subzero cold 26.1°F (-3.3°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Castle Rock, MN
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (20.8°F).
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (7.7°F).
Average pressure
Castle Rock, MN
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
30"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.11"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed
Castle Rock, MN
- Average wind speed in January:
8.6mph - Average wind speed in February:
8.8mph - Average wind speed in March:
8.9mph - Average wind speed in April:
9.5mph - Average wind speed in May:
8.5mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
7mph - Average wind speed in August:
7.1mph - Average wind speed in September:
8mph - Average wind speed in October:
8.9mph - Average wind speed in November:
8.9mph - Average wind speed in December:
8.3mph
The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest month (with the lowest average wind speed) is July (7mph).
Average humidity
Castle Rock, MN
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and October (73%).
Average rainfall
Castle Rock, MN
- Average rainfall in January:
0.75" - Average rainfall in February:
0.94" - Average rainfall in March:
1.5" - Average rainfall in April:
2.36" - Average rainfall in May:
2.91" - Average rainfall in June:
4.21"
- Average rainfall in July:
2.91" - Average rainfall in August:
2.68" - Average rainfall in September:
2.13" - Average rainfall in October:
1.93" - Average rainfall in November:
1.18" - Average rainfall in December:
1.26"
The wettest month (with the highest rainfall) is June (4.21").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days
Castle Rock, MN
- Average rainfall days in January:
3.1 days - Average rainfall days in February:
2.8 days - Average rainfall days in March:
9.5 days - Average rainfall days in April:
13.6 days - Average rainfall days in May:
16 days - Average rainfall days in June:
17.4 days
- Average rainfall days in July:
15.9 days - Average rainfall days in August:
14 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
10.8 days - Average rainfall days in November:
7.7 days - Average rainfall days in December:
4.3 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (2.8 days).
Average snowfall
Castle Rock, MN
- Average snowfall in January:
3.82" - Average snowfall in February:
6.1" - Average snowfall in March:
2.95" - Average snowfall in April:
1.65" - Average snowfall in May:
0.47" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.1").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Castle Rock, MN
- Average snowfall days in January:
13.8 days - Average snowfall days in February:
11.1 days - Average snowfall days in March:
7.3 days - Average snowfall days in April:
4.1 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 days - Average snowfall days in October:
1.6 days - Average snowfall days in November:
5.8 days - Average snowfall days in December:
11.6 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Castle Rock, MN
- 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 12min - 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 - Average sunshine in February:
3h and 18min - Average sunshine in March:
5h and 6min - Average sunshine in April:
7h and 24min - Average sunshine in May:
8h and 18min - Average sunshine in June:
9h and 12min
- Average sunshine in July:
10h - Average sunshine in August:
9h and 42min - Average sunshine in September:
8h and 36min - Average sunshine in October:
5h and 18min - Average sunshine in November:
4h and 48min - Average sunshine in December:
3h and 30min
The month with the most sunshine is July (Average sunshine: 10h).
The month with the least sunshine is January (Average sunshine: 3h).
Average sunshine days
Castle Rock, MN
- Average sunshine days in January:
16.2 days - Average sunshine days in February:
16 days - Average sunshine days in March:
15.3 days - Average sunshine days in April:
12.5 days - Average sunshine days in May:
13.3 days - Average sunshine days in June:
10.2 days
- Average sunshine days in July:
12.3 days - Average sunshine days in August:
15.1 days - Average sunshine days in September:
16.1 days - Average sunshine days in October:
17.1 days - Average sunshine days in November:
17.3 days - Average sunshine days in December:
16.9 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is June (10.2 days).
Average UV index
Castle Rock, MN
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
Castle Rock, MN
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility
Castle Rock, MN
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).





