May weather forecastHartwick, IA
May
Weather in May
The last month of the spring, May, is a pleasant month in Hartwick, Iowa, with an average temperature fluctuating between 69.1°F (20.6°C) and 52.2°F (11.2°C).Temperature
Hartwick sees a rise in temperature during May, with average high-temperatures transitioning from a moderate 58.3°F (14.6°C) in April to a pleasant 69.1°F (20.6°C). Hartwick throughout May, experiences an average nighttime temperature of 52.2°F (11.2°C).Humidity
In May, the average relative humidity in Hartwick, Iowa, is 79%.Rainfall
May is the month with the most rainfall. Rain falls for 17.3 days and accumulates 4.21" (107mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Hartwick. During 0.2 snowfall days, in May, Hartwick aggregates 0.12" (3mm) of snow. In Hartwick, during the entire year, snow falls for 35.5 days and aggregates up to 13.98" (355mm) of snow.Daylight
In May, the average length of the day in Hartwick is 14h and 34min.On the first day of May in Hartwick, sunrise is at 6:04 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:37 pm CDT.
Sunshine
In Hartwick, Iowa, the average sunshine in May is 8.5h.UV index
The average daily maximum UV index in May in Hartwick is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 5 in May transforms into the following instructions:
Put precautions into practice - Guidance to elude sunburn is provided. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Hartwick, IA
- Average high temperature in May: 69.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in May: 52.2°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).
Average pressure in May
Hartwick, IA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in May
Hartwick, IA
- Average wind speed in May: 9.1mph
The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in May
Hartwick, IA
- Average humidity in May: 79%
The months with the highest relative humidity are January, February and July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Hartwick, IA
- Average rainfall in May: 4.21"
The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in May
Hartwick, IA
- Average rainfall days in May: 17.3 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in May
Hartwick, IA
- Average snowfall in May: 0.12"
The month with the highest snowfall is January (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Hartwick, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Hartwick, IA
- Average daylight in May: 14h and 36min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
Hartwick, IA
- Average sunshine days in May: 11.9 days
The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in May
Hartwick, IA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Hartwick, IA
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in May
Hartwick, IA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
