Climate and monthly weather forecastRiverside, WY
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Riverside, Wyoming, with an average temperature ranging between min 12.9°F (-10.6°C) and max 26.8°F (-2.9°C). January brings an average high-temperature of a still subzero cold 26.8°F (-2.9°C), showing a slight difference from December's 25.7°F (-3.5°C). Weather in January »Weather in February
The last month of the winter, February, is another freezing cold month in Riverside, Wyoming, with an average temperature fluctuating between 14.2°F (-9.9°C) and 27.9°F (-2.3°C). Stepping into February, Riverside records an average high-temperature of a still subzero cold 27.9°F (-2.3°C), almost consistent with January. Weather in February »Weather in March
The first month of the spring, March, is an icy month in Riverside, Wyoming, with an average temperature fluctuating between 37°F (2.8°C) and 22.5°F (-5.3°C). The shift from February to March brings an increase in the average high-temperature, moving from a freezing cold 27.9°F (-2.3°C) to a cold 37°F (2.8°C). Weather in March »Weather in April
April in Riverside, Wyoming, is a chilly spring month, with an average temperature ranging between max 44.8°F (7.1°C) and min 27.9°F (-2.3°C). April signifies a subtle uplift in the average high-temperature, adjusting from an icy 37°F (2.8°C) in March to a chilly 44.8°F (7.1°C). Weather in April »Weather in May
May, the last month of the spring in Riverside, is a moderate month, with temperature in the range of an average high of 56.8°F (13.8°C) and an average low of 36.1°F (2.3°C). The shift into May is marked by a rise in the average high-temperature, moving from April's frosty 44.8°F (7.1°C) to a refreshing 56.8°F (13.8°C). Weather in May »Weather in June
The first month of the summer, June, is an agreeable month in Riverside, Wyoming, with an average temperature varying between 71.2°F (21.8°C) and 46.6°F (8.1°C). As June arrives, a noticeable rise in the average high-temperature is witnessed, moving from a refreshing 56.8°F (13.8°C) in May to an agreeable 71.2°F (21.8°C). Weather in June »Weather in July
July in Riverside, Wyoming, is a warm summer month, with an average temperature ranging between max 77.9°F (25.5°C) and min 52.3°F (11.3°C). Riverside experiences its highest average temperatures in July, reaching a peak of 77.9°F (25.5°C) and a minimum of 52.3°F (11.3°C). Weather in July »Weather in August
August, the last month of the summer in Riverside, is another warm month, with an average temperature fluctuating between 50.7°F (10.4°C) and 76.3°F (24.6°C). August's weather displays an average high-temperature of a still moderately hot 76.3°F (24.6°C), slightly varied from July's 77.9°F (25.5°C). Weather in August »Weather in September
September, the first month of the autumn in Riverside, is also an agreeable month, with temperature in the range of an average high of 68.5°F (20.3°C) and an average low of 45°F (7.2°C). The onset of September entails a subtle temperature shift, as the average high-temperature eases from a moderately hot 76.3°F (24.6°C) in August to a pleasant 68.5°F (20.3°C). Weather in September »Weather in October
October, the same as September, is another fresh autumn month in Riverside, Wyoming, with temperature in the range of an average low of 31.8°F (-0.1°C) and an average high of 50.2°F (10.1°C). Riverside sees a considerable decrease in average high-temperatures during October, falling from an agreeable 68.5°F (20.3°C) in September to a fresh 50.2°F (10.1°C). Weather in October »Weather in November
November, the last month of the autumn in Riverside, is another cold month, with an average temperature ranging between max 36.7°F (2.6°C) and min 21.9°F (-5.6°C). The shift from October to November corresponds with a decrease in the average high-temperature, down to a wintry 36.7°F (2.6°C) from a fresh 50.2°F (10.1°C). Weather in November »Weather in December
December, the first month of the winter in Riverside, is also a subzero cold month, with an average temperature varying between 25.7°F (-3.5°C) and 12.9°F (-10.6°C). Riverside's December weather reaches an average high of 25.7°F (-3.5°C) and an average low of 12.9°F (-10.6°C), making it the coldest month. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Riverside, WY
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is December (25.7°F).
The month with the highest average low temperature is July (52.3°F).
The coldest months (with the lowest average low temperature) are January and December (12.9°F).
Average pressure
Riverside, WY
- Average pressure in January:
30.23"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.19"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed
Riverside, WY
- Average wind speed in January:
11.2mph - Average wind speed in February:
11.5mph - Average wind speed in March:
11.1mph - Average wind speed in April:
11.2mph - Average wind speed in May:
9.9mph - Average wind speed in June:
10.6mph
- Average wind speed in July:
9.1mph - Average wind speed in August:
9.3mph - Average wind speed in September:
10.1mph - Average wind speed in October:
11mph - Average wind speed in November:
11.8mph - Average wind speed in December:
11.4mph
The windiest month (with the highest average wind speed) is November (11.8mph).
The calmest month (with the lowest average wind speed) is July (9.1mph).
Average humidity
Riverside, WY
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (41%).
Average rainfall
Riverside, WY
- Average rainfall in January:
0.98" - Average rainfall in February:
1.1" - Average rainfall in March:
1.34" - Average rainfall in April:
1.97" - Average rainfall in May:
1.89" - Average rainfall in June:
0.79"
- Average rainfall in July:
0.98" - Average rainfall in August:
0.75" - Average rainfall in September:
0.75" - Average rainfall in October:
1.18" - Average rainfall in November:
1.14" - Average rainfall in December:
1.02"
The wettest month (with the highest rainfall) is April (1.97").
The driest months (with the least rainfall) are August and September (0.75").
Average rainfall days
Riverside, WY
- Average rainfall days in January:
6.8 days - Average rainfall days in February:
6 days - Average rainfall days in March:
8 days - Average rainfall days in April:
10.3 days - Average rainfall days in May:
14.7 days - Average rainfall days in June:
9.5 days
- Average rainfall days in July:
11.7 days - Average rainfall days in August:
10.8 days - Average rainfall days in September:
9 days - Average rainfall days in October:
8.6 days - Average rainfall days in November:
4.9 days - Average rainfall days in December:
5.2 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is November (4.9 days).
Average snowfall
Riverside, WY
- Average snowfall in January:
6.85" - Average snowfall in February:
6.85" - Average snowfall in March:
8.15" - Average snowfall in April:
9.76" - Average snowfall in May:
2.99" - Average snowfall in June:
0.08"
The month with the highest snowfall is April (9.76").
The months with the least snowfall are July and August (0").
Average snowfall days
Riverside, WY
- Average snowfall days in January:
16.1 days - Average snowfall days in February:
17.1 days - Average snowfall days in March:
14.2 days - Average snowfall days in April:
12.6 days - Average snowfall days in May:
5 days - Average snowfall days in June:
0.2 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.8 days - Average snowfall days in October:
7.6 days - Average snowfall days in November:
11.7 days - Average snowfall days in December:
15.7 days
The month with the highest number of snowfall days is February (17.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Riverside, WY
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
5h and 48min - Average sunshine in February:
5h and 30min - Average sunshine in March:
8h and 18min - Average sunshine in April:
9h and 42min - Average sunshine in May:
10h and 48min - Average sunshine in June:
11h and 42min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
11h and 48min - Average sunshine in September:
10h and 54min - Average sunshine in October:
7h and 0min - Average sunshine in November:
6h and 36min - Average sunshine in December:
5h and 48min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days
Riverside, WY
- Average sunshine days in January:
13.6 days - Average sunshine days in February:
9.4 days - Average sunshine days in March:
11.9 days - Average sunshine days in April:
9.7 days - Average sunshine days in May:
10.3 days - Average sunshine days in June:
15.8 days
- Average sunshine days in July:
13.5 days - Average sunshine days in August:
14.1 days - Average sunshine days in September:
16.8 days - Average sunshine days in October:
16.2 days - Average sunshine days in November:
16.5 days - Average sunshine days in December:
14 days
The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is February (9.4 days).
Average UV index
Riverside, WY
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Riverside, WY
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are August and September (Cloud cover 14).
Average visibility
Riverside, WY
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).





