Climate and monthly weather forecastJeffrey City, WY
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Jeffrey City, Wyoming, with an average temperature fluctuating between 27.9°F (-2.3°C) and 12.9°F (-10.6°C). January's advent presents an average high-temperature of a still subzero cold 27.9°F (-2.3°C), indicating a slight variation from the conditions of the previous month. Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Jeffrey City, Wyoming, with temperature in the range of an average low of 14.2°F (-9.9°C) and an average high of 30°F (-1.1°C). The commencement of February introduces an average high-temperature of a still subzero cold 30°F (-1.1°C), closely mirroring the preceding month. Weather in February »Weather in March
March, the first month of the spring in Jeffrey City, is a wintry month, with an average temperature fluctuating between 41.5°F (5.3°C) and 25.3°F (-3.7°C). March witnesses an increase in the average high-temperature, moving from a freezing cold 30°F (-1.1°C) in February to an icy 41.5°F (5.3°C). Weather in March »Weather in April
April in Jeffrey City, Wyoming, is a cool spring month, with temperature in the range of an average low of 31.5°F (-0.3°C) and an average high of 50°F (10°C). The onset of April brings a minor temperature shift, with the average high-temperature moving from an icy 41.5°F (5.3°C) in March to a fresh 50°F (10°C). Weather in April »Weather in May
May, the last month of the spring in Jeffrey City, is a refreshing month, with temperature in the range of an average high of 61.2°F (16.2°C) and an average low of 41.4°F (5.2°C). As May arrives, Jeffrey City's weather shows an increase in high-temperatures, moving from April's fresh 50°F (10°C) to an enjoyable 61.2°F (16.2°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Jeffrey City, Wyoming, with an average temperature ranging between min 52.3°F (11.3°C) and max 75.4°F (24.1°C). June witnesses an increase in the average high-temperature, moving from an enjoyable 61.2°F (16.2°C) in May to a moderately hot 75.4°F (24.1°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Jeffrey City, Wyoming, with an average temperature fluctuating between 59.2°F (15.1°C) and 82.9°F (28.3°C). July stands out as Jeffrey City's warmest month, with an average high-temperature of 82.9°F (28.3°C) and a low-temperature of 59.2°F (15.1°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Jeffrey City, Wyoming, with an average temperature fluctuating between 80.8°F (27.1°C) and 58.5°F (14.7°C). The beginning of August records an average high-temperature of a still moderately hot 80.8°F (27.1°C), marking a negligible difference from July's 82.9°F (28.3°C). Weather in August »Weather in September
September, the first month of the autumn in Jeffrey City, is also an agreeable month, with temperature in the range of an average low of 50.9°F (10.5°C) and an average high of 71.6°F (22°C). The onset of September brings a small change in high-temperatures, falling from a warm 80.8°F (27.1°C) in August to a pleasant 71.6°F (22°C). Weather in September »Weather in October
October, like September, in Jeffrey City, Wyoming, is a cool autumn month, with temperature in the range of an average high of 53.8°F (12.1°C) and an average low of 35.6°F (2°C). Jeffrey City's October weather is characterized by a distinct downswing in high-temperatures, falling from September's agreeable 71.6°F (22°C) to a fresh 53.8°F (12.1°C). Weather in October »Weather in November
November, the last month of the autumn in Jeffrey City, is also an icy month, with an average temperature ranging between min 24.6°F (-4.1°C) and max 40.3°F (4.6°C). Jeffrey City's weather in November involves a decrease in the average high-temperature, moving down from October's fresh 53.8°F (12.1°C) to a cold 40.3°F (4.6°C). Weather in November »Weather in December
December, the first month of the winter in Jeffrey City, is also a subzero cold month, with an average temperature varying between 27.1°F (-2.7°C) and 13.3°F (-10.4°C). December brings the lowest temperatures, with an average high of 27.1°F (-2.7°C) and an average low of 13.3°F (-10.4°C). Weather in December »Updated: Aug 15, 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
The most humid month is January, with an average relative humidity of 82%.
Throughout the year, there are 74.8 rainfall days, and 5.71" (145mm) of precipitation is accumulated.
Months with snowfall are January through May, October through December.
Throughout the year, there are 58.1 snowfall days, and 18.94" (481mm) of snow is accumulated.
The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2.
With an average of 6.2h of sunshine, February has the least sunshine of the year.
The months with the most snowfall are March and December, with an average 3.15" (80mm) of accumulated snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Jeffrey City, Wyoming, 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.
April is the month with the most rainfall in Jeffrey City. Rain falls for 10.3 days and accumulates 0.79" (20mm) of precipitation.
In Jeffrey City, snow does not fall in June through September.
June has the longest days of the year, with an average of 15h and 12min of daylight.
In Jeffrey City, July is known for its average highest temperatures, reaching a high of 82.9°F (28.3°C) and a low of 59.2°F (15.1°C).
The months with the least rainfall in Jeffrey City, Wyoming, are July and August Rain falls for 6.2 days and accumulates 0.24" (6mm) of rain.
July has the most sunshine of the year in Jeffrey City, with an average of 12h of sunshine.
With an average maximum UV index of 6, July is the month with the highest UV index.
The least humid month is August, with an average relative humidity of 34%.
Jeffrey City records the coldest temperatures in December, averaging a high of 27.1°F (-2.7°C) and a low of 13.3°F (-10.4°C).
December has the shortest days of the year, with an average of 9h and 6min of daylight.
Average temperature
Jeffrey City, WY
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (27.1°F).
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).
Average pressure
Jeffrey City, WY
- Average pressure in January:
30.2"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30"Hg - Average pressure in April:
29.91"Hg - Average pressure in May:
29.9"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.18"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed
Jeffrey City, WY
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.6mph - Average wind speed in April:
10.9mph - Average wind speed in May:
9.9mph - Average wind speed in June:
10.1mph
- Average wind speed in July:
8.6mph - Average wind speed in August:
8.3mph - Average wind speed in September:
9.6mph - Average wind speed in October:
10.4mph - Average wind speed in November:
10.9mph - Average wind speed in December:
10.5mph
The windiest months (with the highest average wind speed) are April and November (10.9mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity
Jeffrey City, WY
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (34%).
Average rainfall
Jeffrey City, WY
- Average rainfall in January:
0.35" - Average rainfall in February:
0.43" - Average rainfall in March:
0.63" - Average rainfall in April:
0.79" - Average rainfall in May:
0.71" - Average rainfall in June:
0.43"
- Average rainfall in July:
0.24" - Average rainfall in August:
0.24" - Average rainfall in September:
0.35" - Average rainfall in October:
0.59" - Average rainfall in November:
0.51" - Average rainfall in December:
0.43"
The wettest month (with the highest rainfall) is April (0.79").
The driest months (with the least rainfall) are July and August (0.24").
Average rainfall days
Jeffrey City, WY
- Average rainfall days in January:
5.5 days - Average rainfall days in February:
4.3 days - Average rainfall days in March:
5.5 days - Average rainfall days in April:
10.3 days - Average rainfall days in May:
8.7 days - Average rainfall days in June:
7 days
- Average rainfall days in July:
6.2 days - Average rainfall days in August:
5.6 days - Average rainfall days in September:
6 days - Average rainfall days in October:
5.2 days - Average rainfall days in November:
4.8 days - Average rainfall days in December:
5.7 days
The month with the highest number of rainy days is April (10.3 days).
The month with the least rainy days is February (4.3 days).
Average snowfall
Jeffrey City, WY
- Average snowfall in January:
2.36" - Average snowfall in February:
2.56" - Average snowfall in March:
3.15" - Average snowfall in April:
2.48" - Average snowfall in May:
0.63" - Average snowfall in June:
0"
The months with the highest snowfall are March and December (3.15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Jeffrey City, WY
- Average snowfall days in January:
10.1 days - Average snowfall days in February:
10.3 days - Average snowfall days in March:
8.4 days - Average snowfall days in April:
5.6 days - Average snowfall days in May:
1.8 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:
4.5 days - Average snowfall days in November:
6.9 days - Average snowfall days in December:
10.5 days
The month with the highest number of snowfall days is December (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Jeffrey City, WY
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 6min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
6h and 30min - Average sunshine in February:
6h and 12min - Average sunshine in March:
8h and 42min - Average sunshine in April:
10h and 12min - Average sunshine in May:
11h and 0min - Average sunshine in June:
11h and 48min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 54min - Average sunshine in September:
11h and 0min - Average sunshine in October:
7h and 0min - Average sunshine in November:
6h and 54min - Average sunshine in December:
6h and 18min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 12min).
Average sunshine days
Jeffrey City, WY
- Average sunshine days in January:
20.8 days - Average sunshine days in February:
17.6 days - Average sunshine days in March:
17.8 days - Average sunshine days in April:
14.5 days - Average sunshine days in May:
18.2 days - Average sunshine days in June:
20.5 days
- Average sunshine days in July:
21.3 days - Average sunshine days in August:
21.3 days - Average sunshine days in September:
22.1 days - Average sunshine days in October:
20.7 days - Average sunshine days in November:
20.8 days - Average sunshine days in December:
19.8 days
The month with the most sunshine days is September (22.1 days).
The month with the least sunshine days is April (14.5 days).
Average UV index
Jeffrey City, WY
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover
Jeffrey City, WY
The month with the most cloud cover is February (Cloud cover 37).
The months with the least cloud cover are August and September (Cloud cover 13).
Average visibility
Jeffrey City, 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).
