Climate and monthly weather forecastSleepy Hollow, WY
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Sleepy Hollow, Wyoming, with an average temperature varying between 30.4°F (-0.9°C) and 17.6°F (-8°C). As Sleepy Hollow steps into January, the average high-temperature holds at a still freezing cold 30.4°F (-0.9°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 Sleepy Hollow, Wyoming, with temperature in the range of an average low of 16.7°F (-8.5°C) and an average high of 30.9°F (-0.6°C). Sleepy Hollow marks the onset of February with an average high-temperature of a still freezing cold 30.9°F (-0.6°C), subtly divergent from January's 30.4°F (-0.9°C). Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Sleepy Hollow, Wyoming, with an average temperature varying between 28.9°F (-1.7°C) and 44.6°F (7°C). The beginning of March marks a shift in the average high-temperature, moving from February's subzero cold 30.9°F (-0.6°C) to a chilly 44.6°F (7°C). Weather in March »Weather in April
April in Sleepy Hollow, Wyoming, is a cool spring month, with an average temperature ranging between min 34.3°F (1.3°C) and max 52.3°F (11.3°C). A slight uplift in the average high-temperature marks April, adjusting from March's frosty 44.6°F (7°C) to a cool 52.3°F (11.3°C). Weather in April »Weather in May
May, the last month of the spring in Sleepy Hollow, is a comfortable month, with an average temperature ranging between min 43.3°F (6.3°C) and max 62.2°F (16.8°C). An escalation in the average high-temperature is seen with the onset of May, moving from a cool 52.3°F (11.3°C) in April to a refreshing 62.2°F (16.8°C). Weather in May »Weather in June
June, the first month of the summer in Sleepy Hollow, is a moderately hot month, with an average temperature varying between 75.6°F (24.2°C) and 54.3°F (12.4°C). In June, the meteorological conditions change with the average high-temperature moving from an enjoyable 62.2°F (16.8°C) in May to a moderately hot 75.6°F (24.2°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Sleepy Hollow, Wyoming, with an average temperature varying between 63.1°F (17.3°C) and 84.7°F (29.3°C). In Sleepy Hollow, the highest average temperatures are observed in July, with a high of 84.7°F (29.3°C) and a low of 63.1°F (17.3°C). For July, the heat index is computed to be 84.2°F (29°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Sleepy Hollow, Wyoming, with temperature in the range of an average low of 62.4°F (16.9°C) and an average high of 82.4°F (28°C). In Sleepy Hollow, August's average high-temperature stands at a still moderately hot 82.4°F (28°C), closely related to the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Sleepy Hollow, Wyoming, with an average temperature ranging between min 54.3°F (12.4°C) and max 73.6°F (23.1°C). September signifies a minor drop in average high-temperature, transitioning from 82.4°F (28°C) in August to a still moderately hot 73.6°F (23.1°C). Weather in September »Weather in October
October, like September, in Sleepy Hollow, Wyoming, is another fresh autumn month, with an average temperature varying between 55.2°F (12.9°C) and 39.2°F (4°C). Sleepy Hollow's October weather is characterized by a distinct downswing in high-temperatures, falling from September's moderately hot 73.6°F (23.1°C) to a fresh 55.2°F (12.9°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Sleepy Hollow, Wyoming, with an average temperature varying between 27.7°F (-2.4°C) and 42.8°F (6°C). November brings a drop in Sleepy Hollow's average high-temperature, falling from a fresh 55.2°F (12.9°C) in October to a frosty 42.8°F (6°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Sleepy Hollow, Wyoming, with an average temperature varying between 29.7°F (-1.3°C) and 17.2°F (-8.2°C). December is the month when Sleepy Hollow sees the lowest average temperatures, with a high of 29.7°F (-1.3°C) and a low of 17.2°F (-8.2°C). Weather in December »Updated: Aug 28, 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 78%, January is the most humid month.
January is the month with the least rainfall. Rain falls for 2 days and accumulates 0.39" (10mm) of precipitation.
In Sleepy Hollow, during the entire year, the rain falls for 108.9 days and collects up to 15.59" (396mm) of precipitation.
Months with snowfall are January through May, September through December.
Throughout the year, there are 50.5 snowfall days, and 19.53" (496mm) of snow is accumulated.
January, February, April, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
With an average of 5.6h of sunshine, February has the least sunshine of the year in Sleepy Hollow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Sleepy Hollow, 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 snowfall. Snow falls for 7.1 days and accumulates 3.82" (97mm) of snow.
May is the month with the most rainfall. Rain falls for 17.8 days and accumulates 3.11" (79mm) of precipitation.
June through August are months without snowfall.
June has the longest days of the year, with an average of 15h and 30min of daylight.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
The average temperatures reach their apex in July, averaging 84.7°F (29.3°C) at the high end and 63.1°F (17.3°C) at the low end.
July and August, with an average of 11.8h of sunshine, are months with the most sunshine.
August is the least humid month, with an average relative humidity of 41%.
The coldest month is December, with an average high-temperature of 29.7°F (-1.3°C) and an average low-temperature of 17.2°F (-8.2°C).
With an average of 8h and 54min of daylight, December has the shortest days of the year.
Average temperature
Sleepy Hollow, WY
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (29.7°F).
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is February (16.7°F).
Average pressure
Sleepy Hollow, WY
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
29.98"Hg - Average pressure in April:
29.91"Hg - Average pressure in May:
29.9"Hg - Average pressure in June:
29.84"Hg
- Average pressure in July:
29.89"Hg - Average pressure in August:
29.89"Hg - Average pressure in September:
29.93"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed
Sleepy Hollow, WY
- Average wind speed in January:
10.9mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.9mph - Average wind speed in April:
11.2mph - Average wind speed in May:
10.7mph - Average wind speed in June:
9.9mph
- Average wind speed in July:
9.1mph - Average wind speed in August:
9.1mph - Average wind speed in September:
10.1mph - Average wind speed in October:
11mph - Average wind speed in November:
10.8mph - Average wind speed in December:
11mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (9.1mph).
Average humidity
Sleepy Hollow, WY
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (41%).
Average rainfall
Sleepy Hollow, WY
- Average rainfall in January:
0.39" - Average rainfall in February:
0.43" - Average rainfall in March:
0.94" - Average rainfall in April:
2.13" - Average rainfall in May:
3.11" - Average rainfall in June:
1.89"
- Average rainfall in July:
1.77" - Average rainfall in August:
1.73" - Average rainfall in September:
1.02" - Average rainfall in October:
1.18" - Average rainfall in November:
0.55" - Average rainfall in December:
0.43"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days
Sleepy Hollow, WY
- Average rainfall days in January:
2 days - Average rainfall days in February:
1.5 days - Average rainfall days in March:
6.3 days - Average rainfall days in April:
13 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
15.5 days
- Average rainfall days in July:
14.4 days - Average rainfall days in August:
14.2 days - Average rainfall days in September:
10.2 days - Average rainfall days in October:
8.8 days - Average rainfall days in November:
3.4 days - Average rainfall days in December:
1.8 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (1.5 days).
Average snowfall
Sleepy Hollow, WY
- Average snowfall in January:
2.01" - Average snowfall in February:
2.09" - Average snowfall in March:
2.72" - Average snowfall in April:
3.82" - Average snowfall in May:
2.6" - Average snowfall in June:
0"
The month with the highest snowfall is April (3.82").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Sleepy Hollow, WY
- Average snowfall days in January:
7 days - Average snowfall days in February:
9.1 days - Average snowfall days in March:
6.4 days - Average snowfall days in April:
7.1 days - Average snowfall days in May:
2.3 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:
0.4 days - Average snowfall days in October:
4.8 days - Average snowfall days in November:
7.1 days - Average snowfall days in December:
6.2 days
The month with the highest number of snowfall days is February (9.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Sleepy Hollow, 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 6min - 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:
5h and 48min - Average sunshine in February:
5h and 36min - Average sunshine in March:
7h and 36min - Average sunshine in April:
9h and 12min - Average sunshine in May:
10h and 0min - Average sunshine in June:
11h and 18min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
11h and 48min - Average sunshine in September:
10h and 48min - Average sunshine in October:
6h and 36min - Average sunshine in November:
6h and 18min - Average sunshine in December:
5h and 54min
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 36min).
Average sunshine days
Sleepy Hollow, WY
- Average sunshine days in January:
21.5 days - Average sunshine days in February:
17.9 days - Average sunshine days in March:
17.8 days - Average sunshine days in April:
11.5 days - Average sunshine days in May:
9.3 days - Average sunshine days in June:
11.2 days
- Average sunshine days in July:
12.6 days - Average sunshine days in August:
12.2 days - Average sunshine days in September:
16.4 days - Average sunshine days in October:
17.5 days - Average sunshine days in November:
20.5 days - Average sunshine days in December:
22.4 days
The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is May (9.3 days).
Average UV index
Sleepy Hollow, WY
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, April, November and December (UV index 2).
Average cloud cover
Sleepy Hollow, WY
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility
Sleepy Hollow, 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).
