Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
Witnessing a clear downswing, the average high-temperature in Greybull during October drops from September's pleasant 73.2°F (22.9°C) to a refreshing 55.6°F (13.1°C). Greybull, during October nights, observes an average temperature of 39.4°F (4.1°C).Humidity
In October, the average relative humidity in Greybull is 48%.Rainfall
In Greybull, in October, it is raining for 7.4 days, with typically 0.43" (11mm) of accumulated precipitation. Throughout the year, in Greybull, there are 103.2 rainfall days, and 5.71" (145mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 1.6 snowfall days, it receives 0.43" (11mm) of snow. In Greybull, during the entire year, snow falls for 41.4 days and aggregates up to 9.41" (239mm) of snow.Daylight
In Greybull, the average length of the day in October is 10h and 58min.On the first day of October, sunrise is at 7:11 am and sunset at 6:52 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 6:02 pm MDT.
Sunshine
The average sunshine in October in Greybull is 7.3h.UV index
In Greybull, the average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In October, a daily UV index of 3 turns into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are October temperatures in Greybull?
What is the average humidity in October in Greybull?
How much does it rain in Greybull in October?
When does it start to snow in Greybull?
What is the average length of the day in October in Greybull?
What time are sunrise and sunset in October in Greybull?
How long on average sun shines in October in Greybull?
What is the UV index reading in October in Greybull?
Average temperature in October
Greybull, WY
- Average high temperature in October: 55.6°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is December (28.8°F).
- Average low temperature in October: 39.4°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).
Average pressure in October
Greybull, WY
- Average pressure in October: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in October
Greybull, WY
- Average wind speed in October: 7mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest months (with the lowest average wind speed) are January and August (6mph).
Average humidity in October
Greybull, WY
- Average humidity in October: 48%
The month with the highest relative humidity is January (78%).
The months with the lowest relative humidity are July and August (33%).
Average rainfall in October
Greybull, WY
- Average rainfall in October: 0.43"
The wettest month (with the highest rainfall) is May (0.87").
The driest month (with the least rainfall) is December (0.2").
Average rainfall days in October
Greybull, WY
- Average rainfall days in October: 7.4 days
The month with the highest number of rainy days is May (12.6 days).
The month with the least rainy days is December (6.5 days).
Average snowfall in October
Greybull, WY
- Average snowfall in October: 0.43"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Greybull, WY
- Average snowfall days in October: 1.6 days
The month with the highest number of snowfall days is February (9.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in October /
Average sunshine in October
Greybull, WY
- Average daylight in October: 11h and 0min
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 October: 7h and 2min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 42min).
Average sunshine days in October
Greybull, WY
- Average sunshine days in October: 18.3 days
The month with the most sunshine days is December (20.9 days).
The months with the least sunshine days are April and June (12.5 days).
Average UV index in October
Greybull, WY
- Average UV index in October: 3
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, March, November and December (UV index 2).
Average cloud cover in October
Greybull, WY
- Average cloud cover in October: 19
The month with the most cloud cover is February (Cloud cover 28).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in October
Greybull, WY
- Average visibility in October: 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).
Greybull, Wyoming, USA
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