Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The onset of September results in a small decrease in the average high-temperature, moderately receding from a warm 77.4°F (25.2°C) in August to an agreeable 68.7°F (20.4°C). Parkman records an average temperature drop to a chilly 48.7°F (9.3°C) in September.Humidity
The average relative humidity in September in Parkman, Wyoming, is 48%.Rainfall
In Parkman, in September, during 12.5 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, in Parkman, there are 165.2 rainfall days, and 21.22" (539mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows in Parkman, Wyoming. Throughout September, in the average 0.3 snowfall days, it receives 0.35" (9mm) of snow. In Parkman, during the entire year, snow falls for 78.9 days and aggregates up to 46.3" (1176mm) of snow.Daylight
In Parkman, the average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:32 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:50 pm MDT.
Sunshine
In Parkman, the average sunshine in September is 10.8h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 4 in September translates into these instructions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Frequently asked questions
What are September temperatures in Parkman?
What is the average humidity in September in Parkman?
How much does it rain in Parkman in September?
When does it start snowing in Parkman?
How many hours of daylight does Parkman have in September?
When are sunrise and sunset in September in Parkman?
How many hours of sunshine does Parkman have in September?
What is the UV index reading in September in Parkman?
Average temperature in September
Parkman, WY
- Average high temperature in September: 68.7°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is February (29.1°F).
- Average low temperature in September: 48.7°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).
Average pressure in September
Parkman, WY
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Parkman, WY
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in September
Parkman, WY
- Average humidity in September: 48%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (46%).
Average rainfall in September
Parkman, WY
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is December (0.75").
Average rainfall days in September
Parkman, WY
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (22.3 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in September
Parkman, WY
- Average snowfall in September: 0.35"
The month with the highest snowfall is April (8.7").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Parkman, WY
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is February (15.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Parkman, WY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 10h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 6min).
Average sunshine days in September
Parkman, WY
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is May (5.8 days).
Average UV index in September
Parkman, WY
- Average UV index in September: 4
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 in September
Parkman, WY
- Average cloud cover in September: 18
The months with the most cloud cover are February and April (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in September
Parkman, WY
- Average visibility in September: 6mi
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).
Parkman, Wyoming, USA
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