June weather forecastMerna, WY
June
Weather in June
June, the first month of the summer in Merna, is a refreshing month, with an average temperature ranging between max 67.8°F (19.9°C) and min 45°F (7.2°C).Temperature
An upsurge in temperatures occurs as May gives way to June, with average highs shifting from a fresh 55°F (12.8°C) to a comfortable 67.8°F (19.9°C). With a significant daily temperature differential, Merna's nighttime temperature in June falls to an average of 45°F (7.2°C).Humidity
In Merna, the average relative humidity in June is 46%.Rainfall
In Merna, in June, during 9.3 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. In Merna, during the entire year, the rain falls for 109.9 days and collects up to 10.59" (269mm) of precipitation.Snowfall
Months with snowfall in Merna are January through June, September through December. June is the last month it regularly snows in Merna. During 0.3 snowfall days, in June, Merna aggregates 0.55" (14mm) of snow. Throughout the year, there are 89 snowfall days, and 43.43" (1103mm) of snow is accumulated.Daylight
The month with the longest days in Merna, Wyoming, is June, with an average of 15h and 18min of daylight.On the first day of the month, sunrise is at 5:44 am and sunset at 8:54 pm. On the last day of June, in Merna, Wyoming, sunrise is at 5:46 am and sunset at 9:04 pm MDT.
Sunshine
The average sunshine in June in Merna, Wyoming, is 11.8h.UV index
The months with the highest UV index in Merna are June through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 5 in June interprets into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Merna, WY
- Average high temperature in June: 67.8°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 June: 45°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 June
Merna, WY
- Average pressure in June: 29.91"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 June
Merna, WY
- Average wind speed in June: 7mph
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 June
Merna, WY
- Average humidity in June: 46%
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 June
Merna, WY
- Average rainfall in June: 0.75"
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 June
Merna, WY
- Average rainfall days in June: 9.3 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 June
Merna, WY
- Average snowfall in June: 0.55"
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 June
Merna, WY
- Average snowfall days in June: 0.3 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 June /
Average sunshine in June
Merna, WY
- Average daylight in June: 15h and 18min
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 June: 11h and 48min
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 June
Merna, WY
- Average sunshine days in June: 17.7 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 June
Merna, WY
- Average UV index in June: 5
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 June
Merna, WY
- Average cloud cover in June: 16
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 June
Merna, WY
- Average visibility in June: 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).





