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
As September transitions into October, a clear downswing in temperatures is observed, with average highs retreating from an enjoyable 66.4°F (19.1°C) to a frosty 49.1°F (9.5°C). In the month of October, the temperature generally rests at an average low of 30.7°F (-0.7°C).Humidity
The average relative humidity in October in Merna is 59%.Rainfall
In October, the rain falls for 7.1 days. Throughout October, 0.71" (18mm) of precipitation is accumulated. In Merna, during the entire year, the rain falls for 109.9 days and collects up to 10.59" (269mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. In October, it is snowing for 5.2 days. Throughout October, 2.48" (63mm) of snow is accumulated. In Merna, Wyoming, during the entire year, snow falls for 89 days and aggregates up to 43.43" (1103mm) of snow.Daylight
In Merna, the average length of the day in October is 11h and 1min.On the first day of the month, sunrise is at 7:19 am and sunset at 7:01 pm. On the last day of October, in Merna, Wyoming, sunrise is at 7:55 am and sunset at 6:14 pm MDT.
Sunshine
In October, the average sunshine in Merna is 7.2h.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Merna. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 2 in October translates into this advice:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. To protect against the Sun's most potent rays, avoid direct exposure around midday. Boost your sun resistance with garments that are densely woven yet spacious. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are October temperatures in Merna?
What is the average humidity in October in Merna?
How many days does it rain in October in Merna?
How many days does it snow in October in Merna?
How many hours of daylight does Merna have in October?
When are sunrise and sunset in October in Merna?
How many hours of sunshine does Merna have in October?
What are the months with the lowest UV index in Merna?
What is the UV index intensity in October in Merna?
Average temperature in October
Merna, WY
- Average high temperature in October: 49.1°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is December (23.7°F).
- Average low temperature in October: 30.7°F
The month with the highest average low temperature is July (52°F).
The coldest month (with the lowest average low temperature) is December (5°F).
Average pressure in October
Merna, WY
- Average pressure in October: 30.05"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in October
Merna, WY
- Average wind speed in October: 6.2mph
The windiest month (with the highest average wind speed) is June (7mph).
The calmest month (with the lowest average wind speed) is December (5.3mph).
Average humidity in October
Merna, WY
- Average humidity in October: 59%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is August (39%).
Average rainfall in October
Merna, WY
- Average rainfall in October: 0.71"
The wettest month (with the highest rainfall) is May (1.65").
The driest months (with the least rainfall) are July and August (0.63").
Average rainfall days in October
Merna, WY
- Average rainfall days in October: 7.1 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is November (6.9 days).
Average snowfall in October
Merna, WY
- Average snowfall in October: 2.48"
The month with the highest snowfall is April (7.36").
The months with the least snowfall are July and August (0").
Average snowfall days in October
Merna, WY
- Average snowfall days in October: 5.2 days
The months with the highest number of snowfall days are February and March (15.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in October /
Average sunshine in October
Merna, WY
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in October: 7h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 12min).
Average sunshine days in October
Merna, WY
- Average sunshine days in October: 19.6 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in October
Merna, WY
- Average UV index in October: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in October
Merna, WY
- Average cloud cover in October: 21
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in October
Merna, WY
- Average visibility in October: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Merna, Wyoming, USA
Weather forecast for your location
2. Allow the app to use your location