Climate and monthly weather forecastRalston, WY
Climate and monthly weather forecast
Weather in January
January, the same as December, in Ralston, Wyoming, is a freezing cold winter month, with an average temperature varying between 30.9°F (-0.6°C) and 16.5°F (-8.6°C). As Ralston steps into January, the average high-temperature holds at a still subzero cold 30.9°F (-0.6°C), hinting at a minor fluctuation from the prior month. Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Ralston, Wyoming, with an average temperature fluctuating between 31.3°F (-0.4°C) and 16°F (-8.9°C). The onset of February manifests an average high-temperature of a still subzero cold 31.3°F (-0.4°C), demonstrating a minor variation from the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Ralston, Wyoming, with an average temperature fluctuating between 43.9°F (6.6°C) and 28.2°F (-2.1°C). March's arrival brings a change in high-temperatures, moving from a freezing cold 31.3°F (-0.4°C) in February to a chilly 43.9°F (6.6°C). Weather in March »Weather in April
April is a cool spring month in Ralston, Wyoming, with an average temperature fluctuating between 34.3°F (1.3°C) and 52.3°F (11.3°C). With the onset of April, Ralston observes a minor temperature ascent, with the average high-temperature adjusting from March's frosty 43.9°F (6.6°C) to a cool 52.3°F (11.3°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Ralston, Wyoming, with an average temperature varying between 62.8°F (17.1°C) and 44.2°F (6.8°C). May signals a shift in the average high-temperature, moving from April's fresh 52.3°F (11.3°C) to an enjoyable 62.8°F (17.1°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Ralston, Wyoming, with an average temperature varying between 75°F (23.9°C) and 54°F (12.2°C). In June, the meteorological conditions change with the average high-temperature moving from a comfortable 62.8°F (17.1°C) in May to a warm 75°F (23.9°C). Weather in June »Weather in July
July, like June, in Ralston, Wyoming, is another warm summer month, with an average temperature varying between 83.8°F (28.8°C) and 60.4°F (15.8°C). Ralston witnesses the warmest weather in July, with temperatures averaging a high of 83.8°F (28.8°C) and a low of 60.4°F (15.8°C). Weather in July »Weather in August
August, the last month of the summer in Ralston, is another warm month, with an average temperature varying between 59.4°F (15.2°C) and 81.3°F (27.4°C). Ralston experiences a minor change to a still moderately hot 81.3°F (27.4°C) in average high-temperature during August, closely reflecting July. Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Ralston, Wyoming, with an average temperature varying between 72.1°F (22.3°C) and 51.1°F (10.6°C). September comes with a decrease in the average high-temperature, falling from a warm 81.3°F (27.4°C) in August to an agreeable 72.1°F (22.3°C). Weather in September »Weather in October
October, like September, in Ralston, Wyoming, is a cool autumn month, with an average temperature ranging between max 54.9°F (12.7°C) and min 37.9°F (3.3°C). Ralston's weather undergoes a significant change with the arrival of October, as the average high-temperature drops from a pleasant 72.1°F (22.3°C) in September to a fresh 54.9°F (12.7°C). Weather in October »Weather in November
The last month of the autumn, November, is another cold month in Ralston, Wyoming, with an average temperature varying between 41°F (5°C) and 26.1°F (-3.3°C). November's arrival correlates with a reduction in the average high-temperature, down from a fresh 54.9°F (12.7°C) in October to a wintry 41°F (5°C). Weather in November »Weather in December
December, the first month of the winter in Ralston, is also a subzero cold month, with temperature in the range of an average low of 15.6°F (-9.1°C) and an average high of 29.7°F (-1.3°C). In Ralston, the lowest average temperatures are observed in December, with a high of 29.7°F (-1.3°C) and a low of 15.6°F (-9.1°C). Weather in December »Updated: Aug 1, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
With an average relative humidity of 76%, January is the most humid month in Ralston, Wyoming.
The month with the least rainfall is January, when the rain falls for 5.8 days and typically collects 0.31" (8mm) of precipitation.
Throughout the year, there are 105.7 rainfall days, and 8.19" (208mm) of precipitation is accumulated.
January through June, September through December are months with snowfall.
In Ralston, during the entire year, snow falls for 52.1 days and aggregates up to 16.97" (431mm) of snow.
The months with the least sunshine are January, February and December, with an average of 6.7h of sunshine.
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
February is the month with the most snowfall. Snow falls for 11 days and accumulates 3.9" (99mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.
The month with the most rainfall is May, when the rain falls for 15.4 days and typically aggregates up to 1.5" (38mm) of precipitation.
The month with the longest days is June, with an average of 15h and 30min of daylight.
The months with the highest UV index are June and July, with an average maximum UV index of 6.
The average temperatures reach their apex in July, averaging 83.8°F (28.8°C) at the high end and 60.4°F (15.8°C) at the low end.
July and August, with an average relative humidity of 37%, are the least humid months.
July and August are months without snowfall.
With an average of 12.1h of sunshine, July has the most sunshine of the year.
Ralston's December weather reaches an average high of 29.7°F (-1.3°C) and an average low of 15.6°F (-9.1°C), making it the coldest month.
December has the shortest days of the year, with an average of 8h and 54min of daylight.
Average temperature
Ralston, WY
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is December (29.7°F).
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is December (15.6°F).
Average pressure
Ralston, WY
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.94"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:
29.97"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.16"Hg
The months with the highest atmospheric pressure are January and December (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed
Ralston, WY
- Average wind speed in January:
6.3mph - Average wind speed in February:
6.5mph - Average wind speed in March:
7.3mph - Average wind speed in April:
8.3mph - Average wind speed in May:
7.7mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.2mph - Average wind speed in September:
6.7mph - Average wind speed in October:
7.1mph - Average wind speed in November:
6.8mph - Average wind speed in December:
6.5mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity
Ralston, WY
The month with the highest relative humidity is January (76%).
The months with the lowest relative humidity are July and August (37%).
Average rainfall
Ralston, WY
- Average rainfall in January:
0.31" - Average rainfall in February:
0.59" - Average rainfall in March:
0.55" - Average rainfall in April:
0.94" - Average rainfall in May:
1.5" - Average rainfall in June:
0.91"
- Average rainfall in July:
0.59" - Average rainfall in August:
0.63" - Average rainfall in September:
0.71" - Average rainfall in October:
0.63" - Average rainfall in November:
0.47" - Average rainfall in December:
0.35"
The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is January (0.31").
Average rainfall days
Ralston, WY
- Average rainfall days in January:
5.8 days - Average rainfall days in February:
5.5 days - Average rainfall days in March:
8.8 days - Average rainfall days in April:
13.1 days - Average rainfall days in May:
15.4 days - Average rainfall days in June:
12.1 days
- Average rainfall days in July:
9.1 days - Average rainfall days in August:
9.2 days - Average rainfall days in September:
7.1 days - Average rainfall days in October:
9.3 days - Average rainfall days in November:
5.4 days - Average rainfall days in December:
4.9 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is December (4.9 days).
Average snowfall
Ralston, WY
- Average snowfall in January:
2.05" - Average snowfall in February:
3.9" - Average snowfall in March:
1.77" - Average snowfall in April:
2.2" - Average snowfall in May:
1.5" - Average snowfall in June:
0.12"
The month with the highest snowfall is February (3.9").
The months with the least snowfall are July and August (0").
Average snowfall days
Ralston, WY
- Average snowfall days in January:
9.3 days - Average snowfall days in February:
11 days - Average snowfall days in March:
6.6 days - Average snowfall days in April:
5.3 days - Average snowfall days in May:
1.5 days - Average snowfall days in June:
0.1 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.2 days - Average snowfall days in October:
3.5 days - Average snowfall days in November:
7.1 days - Average snowfall days in December:
7.5 days
The month with the highest number of snowfall days is February (11 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Ralston, WY
- 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:
6h and 42min - Average sunshine in February:
6h and 42min - Average sunshine in March:
9h and 6min - Average sunshine in April:
10h and 48min - Average sunshine in May:
11h and 6min - Average sunshine in June:
12h and 0min
- Average sunshine in July:
12h and 6min - Average sunshine in August:
11h and 48min - Average sunshine in September:
10h and 48min - Average sunshine in October:
7h and 6min - Average sunshine in November:
6h and 54min - Average sunshine in December:
6h and 42min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 42min).
Average sunshine days
Ralston, WY
- Average sunshine days in January:
20 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
17.2 days - Average sunshine days in April:
11.8 days - Average sunshine days in May:
11.3 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
14.7 days - Average sunshine days in August:
14.9 days - Average sunshine days in September:
17.9 days - Average sunshine days in October:
17.8 days - Average sunshine days in November:
18.6 days - Average sunshine days in December:
21.7 days
The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is May (11.3 days).
Average UV index
Ralston, WY
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Ralston, WY
The month with the most cloud cover is February (Cloud cover 32).
The month with the least cloud cover is July (Cloud cover 13).
Average visibility
Ralston, WY
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).
