May weather forecast
Caledonia, MS

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Weather in May

In May, Caledonia's weather shifts towards a distinctly warmer trend, as the spring season is in full swing. Resulting from the increase in temperatures, the frequency of rainfall slightly decreases, leading to relatively dryer periods. The reduction in rainfall is evident with amounts decreasing from 4.65" (118mm) in April to 3.58" (91mm) in May. Under the lengthened daylight of 13.9 hours, the city's clear skies present a perfect backdrop for the blooming flora. Visitors and locals can enjoy the city's bucolic scenes during this period.

Temperature

May introduces a minor temperature shift, with average high-temperatures adjusting from April's 73.8°F (23.2°C) to a still moderately hot 82°F (27.8°C). Caledonia experiences a consistent average temperature of 62.1°F (16.7°C) throughout the nights in May.

Heat index

The heat index for May is computed to be a hot 87.8°F (31°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.

Humidity

The average relative humidity in May is 75%.

Rainfall

In Caledonia, during May, the rain falls for 15.7 days and regularly aggregates up to 3.58" (91mm) of precipitation. Throughout the year, there are 171.9 rainfall days, and 43.23" (1098mm) of precipitation is accumulated.

Snowfall

In Caledonia, snow does not fall in April through November.

Daylight

In May, the average length of the day is 13h and 55min.
On the first day of May, sunrise is at 6:03 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 7:58 pm CDT.

Sunshine

In May, the average sunshine is 9.9h.

UV index

In May, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: A maximum daily UV index of 6 during May morphs into the following directions:
Guard against overexposure. Protection from sun-induced harm is essential. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Caledonia in May?

In Caledonia, 82°F (27.8°C) is the average high-temperature and 62.1°F (16.7°C) is the average low-temperature during May. In May, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is computed to be 87.8°F (31°C).

What is the average humidity in May?

In Caledonia, the average relative humidity in May is 75%.

How many days does it rain in May?

In Caledonia, in May, it is raining for 15.7 days, with typically 3.58" (91mm) of accumulated precipitation.

When it does not snow?

April through November are months without snowfall.

What is the average length of the day in May?

The average day length in May in Caledonia is 13h and 55min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:03 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 7:58 pm CDT.

How long on average sun shines in May?

In Caledonia, Mississippi, the average sunshine duration in May is 9.9h.

What is the UV index intensity in May in Caledonia?

In May, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Caledonia, MS

Average temperature in May - Caledonia, MS
  • Average high temperature in May: 82°F

The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (51.4°F).

  • Average low temperature in May: 62.1°F

The month with the highest average low temperature is July (71.8°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).

Average pressure in May
Caledonia, MS

Average pressure in May - Caledonia, MS
  • Average pressure in May: 29.99"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in May
Caledonia, MS

Average wind speed in May - Caledonia, MS
  • Average wind speed in May: 6.3mph

The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in May
Caledonia, MS

Average humidity in May - Caledonia, MS
  • Average humidity in May: 75%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (70%).

Average rainfall in May
Caledonia, MS

Average rainfall in May - Caledonia, MS
  • Average rainfall in May: 3.58"

The wettest month (with the highest rainfall) is April (4.65").
The driest month (with the least rainfall) is November (2.32").

Average rainfall days in May
Caledonia, MS

Average rainfall days in May - Caledonia, MS
  • Average rainfall days in May: 15.7 days

The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in May
Caledonia, MS

Average snowfall in May - Caledonia, MS
  • Average snowfall in May: 0"

The month with the highest snowfall is January (0.51").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in May
Caledonia, MS

Average snowfall days in May - Caledonia, MS
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
Caledonia, MS

Average daylight in May / Average sunshine in May - Caledonia, MS
  • Average daylight in May: 13h and 5min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in May: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in May
Caledonia, MS

Average sunshine days in May - Caledonia, MS
  • Average sunshine days in May: 13.2 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (8.4 days).

Average UV index in May
Caledonia, MS

Average UV index in May - Caledonia, MS
  • Average UV index in May: 6

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).

Average cloud cover in May
Caledonia, MS

Average cloud cover in May - Caledonia, MS
  • Average cloud cover in May: 33

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 27).

Average visibility in May
Caledonia, MS

Average visibility in May - Caledonia, MS
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Caledonia, Mississippi, USA

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