Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
As April transitions into May, Grand Lake sees a rise in the average high-temperature, moving from a wintry 38.8°F (3.8°C) to a cool 51.4°F (10.8°C). In May, a remarkable difference from daytime highs is noted, as Grand Lake records an average temperature of 27.5°F (-2.5°C) during the night.Humidity
In Grand Lake, the average relative humidity in May is 65%.Rainfall
In Grand Lake, Colorado, in May, it is raining for 8.8 days, with typically 0.94" (24mm) of accumulated precipitation. In Grand Lake, during the entire year, the rain falls for 82.5 days and collects up to 8.19" (208mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. In May, in Grand Lake, Colorado, it is snowing for 9.2 days. Throughout May, 4.41" (112mm) of snow is accumulated. In Grand Lake, Colorado, during the entire year, snow falls for 90.8 days and aggregates up to 39.13" (994mm) of snow.Daylight
In Grand Lake, the average length of the day in May is 14h and 26min.On the first day of the month, sunrise is at 6:01 am and sunset at 7:59 pm. On the last day of May, sunrise is at 5:35 am and sunset at 8:26 pm MDT.
Sunshine
In May, the average sunshine is 10.8h.UV index
In May, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In May, the average maximum UV index of 3 translates into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Grand Lake in May?
What is the average humidity in May?
How much does it rain in May?
How many days does it snow in May?
How many hours of daylight does Grand Lake have in May?
When are sunrise and sunset in May?
How long on average sun shines in May in Grand Lake?
What is the UV index intensity in May?
Average temperature in May
Grand Lake, CO
- Average high temperature in May: 51.4°F
The warmest month (with the highest average high temperature) is July (72.1°F).
The month with the lowest average high temperature is December (23.4°F).
- Average low temperature in May: 27.5°F
The month with the highest average low temperature is July (42.6°F).
The coldest month (with the lowest average low temperature) is January (2.5°F).
Average pressure in May
Grand Lake, CO
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The months with the lowest atmospheric pressure are April, May and June (29.93"Hg).
Average wind speed in May
Grand Lake, CO
- Average wind speed in May: 6.5mph
The windiest month (with the highest average wind speed) is June (7mph).
The calmest months (with the lowest average wind speed) are July and August (5.4mph).
Average humidity in May
Grand Lake, CO
- Average humidity in May: 65%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is June (49%).
Average rainfall in May
Grand Lake, CO
- Average rainfall in May: 0.94"
The wettest month (with the highest rainfall) is July (1.06").
The driest months (with the least rainfall) are September, November and December (0.39").
Average rainfall days in May
Grand Lake, CO
- Average rainfall days in May: 8.8 days
The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is November (3.3 days).
Average snowfall in May
Grand Lake, CO
- Average snowfall in May: 4.41"
The month with the highest snowfall is April (6.81").
The months with the least snowfall are July and August (0").
Average snowfall days in May
Grand Lake, CO
- Average snowfall days in May: 9.2 days
The month with the highest number of snowfall days is February (13.8 days).
The months with the least snowfall days are July and August (0.1 days).
Average daylight in May /
Average sunshine in May
Grand Lake, CO
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 10h and 5min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).
Average sunshine days in May
Grand Lake, CO
- Average sunshine days in May: 14.6 days
The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is July (13.1 days).
Average UV index in May
Grand Lake, CO
- Average UV index in May: 3
The months with the highest UV index are June, July and August (UV index 4).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Grand Lake, CO
- Average cloud cover in May: 28
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is September (Cloud cover 15).
Average visibility in May
Grand Lake, CO
- Average visibility in May: 6mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
Grand Lake, Colorado, USA
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