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
May marks a rise in the average high-temperature, moving from April's refreshing 57.9°F (14.4°C) to an agreeable 68.4°F (20.2°C). Keffers's temperature lowers to a mean of 49.8°F (9.9°C) during the nights in May.Humidity
In May, the average relative humidity is 81%.Rainfall
In Keffers, in May, it is raining for 11.8 days, with typically 0.98" (25mm) of accumulated precipitation. In Keffers, during the entire year, the rain falls for 100.8 days and collects up to 8.5" (216mm) of precipitation.Snowfall
In Keffers, snow does not fall in May through October.Daylight
The average length of the day in May in Keffers is 14h and 28min.On the first day of the month, sunrise is at 6:03 am and sunset at 8:02 pm. On the last day of May, sunrise is at 5:37 am and sunset at 8:30 pm EDT.
Sunshine
The average sunshine in May is 8.1h.UV index
In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 5 during May translates into the following directions:
Adopt protective measures - Suggestions to resist sunburn are offered. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
How many days does it rain in May?
When it does not snow?
Does it snow in May?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Keffers have in May?
What is the UV index intensity in May in Keffers?
Average temperature in May
Keffers, PA
- Average high temperature in May: 68.4°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in May: 49.8°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in May
Keffers, PA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Keffers, PA
- Average wind speed in May: 6.4mph
The windiest months (with the highest average wind speed) are March and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in May
Keffers, PA
- Average humidity in May: 81%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are March and April (77%).
Average rainfall in May
Keffers, PA
- Average rainfall in May: 0.98"
The wettest month (with the highest rainfall) is July (1.1").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days in May
Keffers, PA
- Average rainfall days in May: 11.8 days
The month with the highest number of rainy days is July (13.2 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in May
Keffers, PA
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Keffers, PA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Keffers, PA
- Average daylight in May: 14h and 3min
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 18min).
- Average sunshine in May: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in May
Keffers, PA
- Average sunshine days in May: 14.8 days
The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is July (14.6 days).
Average UV index in May
Keffers, PA
- Average UV index in May: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Keffers, PA
- Average cloud cover in May: 49
The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in May
Keffers, PA
- Average visibility in May: 5mi
The months with the highest visibility are January, March, April, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August, September and October (5mi).
Keffers, Pennsylvania, USA
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