Climate and monthly weather forecastRockvale, CO
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Rockvale, Colorado, with an average temperature fluctuating between 24.1°F (-4.4°C) and 42.4°F (5.8°C). The advent of January observes an average high-temperature of a still icy 42.4°F (5.8°C), nearly identical to December's 41.5°F (5.3°C). Weather in January »Weather in February
The last month of the winter, February, is a chilly month in Rockvale, Colorado, with an average temperature varying between 43.2°F (6.2°C) and 24.3°F (-4.3°C). Rockvale's average high-temperature marks a chilly 43.2°F (6.2°C) with the advent of February, closely mirroring that of the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a cool month in Rockvale, Colorado, with an average temperature ranging between max 54.7°F (12.6°C) and min 33.6°F (0.9°C). In Rockvale, stepping into March brings a temperature increase, moving up from February's chilly 43.2°F (6.2°C) to a fresh 54.7°F (12.6°C). Weather in March »Weather in April
April in Rockvale, Colorado, is an enjoyable spring month, with an average temperature fluctuating between 39°F (3.9°C) and 61.5°F (16.4°C). Rockvale's weather in April presents a minor rise in the average high-temperature, moving from a cool 54.7°F (12.6°C) in March to a refreshing 61.5°F (16.4°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Rockvale, Colorado, with temperature in the range of an average high of 70.3°F (21.3°C) and an average low of 46.6°F (8.1°C). As Rockvale enters May, the average high-temperature marginally increases from the a refreshing 61.5°F (16.4°C) of April to a pleasant 70.3°F (21.3°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Rockvale, Colorado, with an average temperature fluctuating between 58.3°F (14.6°C) and 83.8°F (28.8°C). June brings a rise in Rockvale's average high-temperature, moving from a pleasant 70.3°F (21.3°C) in May to a warm 83.8°F (28.8°C). Weather in June »Weather in July
July in Rockvale, Colorado, is a hot summer month, with an average temperature ranging between min 63.1°F (17.3°C) and max 86.2°F (30.1°C). In Rockvale, Colorado, the peak average temperatures are observed in July, with a high of 86.2°F (30.1°C) and a low of 63.1°F (17.3°C). In July, the average heat index is estimated at a hot 86°F (30°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Rockvale, Colorado, with temperature in the range of an average low of 61.3°F (16.3°C) and an average high of 84.6°F (29.2°C). Rockvale records an average high-temperature of a moderately hot 84.6°F (29.2°C) in August, closely mirroring the climate of the previous month. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Rockvale, Colorado, with temperature in the range of an average low of 55.6°F (13.1°C) and an average high of 77.5°F (25.3°C). In the transition to September, Rockvale observes a minor drop in the average high-temperature, shifting from a moderately hot 84.6°F (29.2°C) in August to a still warm 77.5°F (25.3°C). Weather in September »Weather in October
October, the same as September, is another comfortable autumn month in Rockvale, Colorado, with temperature in the range of an average low of 41.7°F (5.4°C) and an average high of 63.5°F (17.5°C). The arrival of October corresponds with a temperature reduction, down from September's moderately hot 77.5°F (25.3°C) to an enjoyable 63.5°F (17.5°C). Weather in October »Weather in November
November, the last month of the autumn in Rockvale, is also a fresh month, with an average temperature varying between 32°F (0°C) and 52.5°F (11.4°C). Rockvale's progression into November includes a drop in the average high-temperature, from an enjoyable 63.5°F (17.5°C) in October to a cool 52.5°F (11.4°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Rockvale, Colorado, with temperature in the range of an average high of 41.5°F (5.3°C) and an average low of 23°F (-5°C). Rockvale's coldest weather arrives in December, when temperatures average a high of 41.5°F (5.3°C) and a low of 23°F (-5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Rockvale, CO
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is December (41.5°F).
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is December (23°F).
Average pressure
Rockvale, CO
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
29.98"Hg - Average pressure in April:
29.89"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
30.01"Hg - Average pressure in August:
30.01"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is April (29.89"Hg).
Average wind speed
Rockvale, CO
- Average wind speed in January:
7.5mph - Average wind speed in February:
7.4mph - Average wind speed in March:
7.9mph - Average wind speed in April:
8.3mph - Average wind speed in May:
7.8mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
6.9mph - Average wind speed in August:
6.6mph - Average wind speed in September:
6.8mph - Average wind speed in October:
7.1mph - Average wind speed in November:
7.1mph - Average wind speed in December:
7mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity
Rockvale, CO
The month with the highest relative humidity is February (62%).
The month with the lowest relative humidity is June (38%).
Average rainfall
Rockvale, CO
- Average rainfall in January:
0.47" - Average rainfall in February:
0.83" - Average rainfall in March:
0.83" - Average rainfall in April:
1.14" - Average rainfall in May:
1.81" - Average rainfall in June:
1.69"
- Average rainfall in July:
2.76" - Average rainfall in August:
2.44" - Average rainfall in September:
1.1" - Average rainfall in October:
0.94" - Average rainfall in November:
0.43" - Average rainfall in December:
0.47"
The wettest month (with the highest rainfall) is July (2.76").
The driest month (with the least rainfall) is November (0.43").
Average rainfall days
Rockvale, CO
- Average rainfall days in January:
4.4 days - Average rainfall days in February:
4.8 days - Average rainfall days in March:
7.8 days - Average rainfall days in April:
11.8 days - Average rainfall days in May:
14 days - Average rainfall days in June:
13.1 days
- Average rainfall days in July:
20.4 days - Average rainfall days in August:
19 days - Average rainfall days in September:
11.4 days - Average rainfall days in October:
5.5 days - Average rainfall days in November:
3.9 days - Average rainfall days in December:
4.4 days
The month with the highest number of rainy days is July (20.4 days).
The month with the least rainy days is November (3.9 days).
Average snowfall
Rockvale, CO
- Average snowfall in January:
2.91" - Average snowfall in February:
6.06" - Average snowfall in March:
2.87" - Average snowfall in April:
2.36" - Average snowfall in May:
0.24" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Rockvale, CO
- Average snowfall days in January:
6.5 days - Average snowfall days in February:
7.9 days - Average snowfall days in March:
3.8 days - Average snowfall days in April:
2.4 days - Average snowfall days in May:
0.6 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:
2.3 days - Average snowfall days in November:
3.9 days - Average snowfall days in December:
6.5 days
The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Rockvale, CO
- Average daylight in January:
9h and 54min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 48min
- Average daylight in July:
14h and 30min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
7h and 0min - Average sunshine in February:
6h and 48min - Average sunshine in March:
9h and 12min - Average sunshine in April:
11h and 0min - Average sunshine in May:
11h and 30min - Average sunshine in June:
12h and 0min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
11h and 48min - Average sunshine in September:
11h and 0min - Average sunshine in October:
7h and 42min - Average sunshine in November:
7h and 18min - Average sunshine in December:
7h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 48min).
Average sunshine days
Rockvale, CO
- Average sunshine days in January:
22.6 days - Average sunshine days in February:
17.9 days - Average sunshine days in March:
19.6 days - Average sunshine days in April:
15 days - Average sunshine days in May:
13.2 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
5.1 days - Average sunshine days in August:
6.4 days - Average sunshine days in September:
13 days - Average sunshine days in October:
21.3 days - Average sunshine days in November:
23.8 days - Average sunshine days in December:
23 days
The month with the most sunshine days is November (23.8 days).
The month with the least sunshine days is July (5.1 days).
Average UV index
Rockvale, CO
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Rockvale, CO
The months with the most cloud cover are February and April (Cloud cover 23).
The months with the least cloud cover are June and September (Cloud cover 14).
Average visibility
Rockvale, CO
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).





