The Work Week will Begin with Unsettled Weather from the Southern Plains to the Great Lakes

Unsettled weather is forecast to continue through the first half of the work week from the Southern Plains to the Great Lakes as a frontal system moves through. Isolated to scattered severe thunderstorms and flash flooding will be possible each day. Meanwhile, scattered showers and thunderstorms are expected across the Southwest and California, with isolated flash flooding possible. Read More >

KMAF Aviation Climatology

The following values are percent of occurrence of different flying weather conditions.

The data was derived from 31 years of data (1973-2004).

Ceiling between 1000-3000 feet and/or Visibility between 3-5 miles (MVFR)
Hour	Jan	Feb	Mar	Apr	May	Jun	July	Aug	Sep	Oct	Nov	Dec	Ann
1 am	7 %	6 %	6 %	4 %	4 %	1 %	1 %	2 %	4 %	5 %	5 %	5 %	4.2%
4 am	6 %	6 %	7 %	5 %	5 %	2 %	1 %	2 %	4 %	6 %	7 %	6 %	4.8%
7 am	6 %	7 %	10 %	7 %	9 %	3 %	2 %	1 %	5 %	8 %	8 %	7 %	6.1%
10 am	7 %	8 %	10 %	11%	12%	9 %	4 %	3 %	9 %	9 %	8 %	8 %	8.2%
1 pm	8 %	8 %	12 %	12%	16%	13%	8 %	7 %	14%	11%	10%	8 %	6.6%
4 pm	8 %	8 %	10 %	10%	12%	10%	7 %	7 %	12%	12%	9 %	6 %	8.7%
7 pm	9 %	9 %	8 %	7 %	7 %	5 %	4 %	3 %	9 %	9 %	8 %	8 %	7.2%
10 pm	8 %	8 %	7 %	4 %	5 %	2 %	2 %	2 %	5 %	5 %	7 %	7 %	5.2%

Ceiling greater than or = 500 feet to less than 1000 feet and/or Visibility greater than or = to 1mile to less than 3 miles (IFR)
Hour	Jan	Feb	Mar	Apr	May	Jun	July	Aug	Sep	Oct	Nov	Dec	Ann
1 am	3 %	3 %	2 %	1 %	1 %	0 %	0 %	0 %	2 %	2 %	3 %	3 %	1.7%
4 am	3 %	4 %	2 %	1 %	1 %	0 %	0 %	0 %	2 %	3 %	3 %	4 %	1.9%
7 am	4 %	5 %	3 %	1 %	1 %	1 %	1 %	1 %	3 %	4 %	5 %	4 %	2.8%
10 am	4 %	7 %	4 %	4 %	3 %	1 %	2 %	2 %	4 %	6 %	5 %	4 %	3.8%
1 pm	6 %	7 %	4 %	6 %	5 %	2 %	2 %	2 %	5 %	7 %	6 %	3 %	4.6%
4 pm	7 %	6 %	4 %	3 %	2 %	1 %	1 %	1 %	5 %	6 %	5 %	5 %	3.8%
7 pm	5 %	6 %	3 %	1 %	1 %	0 %	0 %	0 %	3 %	3 %	4 %	4 %	2.5%
10 pm	4 %	3 %	2 %	2 %	1 %	0 %	1 %	0 %	2 %	2 %	2 %	4 %	1.9%

Ceiling greater than or = to 200 feet to less than 500 feet and/or Visibility greater than or = to 1/2 mile to less than 1 mile (LIFR)
Hour	Jan	Feb	Mar	Apr	May	Jun	July	Aug	Sep	Oct	Nov	Dec	Ann
1 am	4 %	2 %	1 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	2 %	2 %	0.9%
4 am	4 %	2 %	1 %	1 %	0 %	0 %	0 %	0 %	1 %	1 %	2 %	2 %	1.2%
7 am	4 %	3 %	2 %	1 %	1 %	0 %	0 %	0 %	2 %	2 %	3 %	2 %	1.7%
10 am	5 %	4 %	2 %	1 %	1 %	0 %	0 %	0 %	3 %	3 %	5 %	4 %	2.3%
1 pm	6 %	5 %	3 %	2 %	1 %	1 %	1 %	1 %	4 %	4 %	6 %	4 %	3.2%
4 pm	6 %	5 %	2 %	1 %	1 %	0 %	0 %	0 %	2 %	2 %	4 %	4 %	2.3%
7 pm	4 %	2 %	1 %	0 %	0 %	0 %	0 %	0 %	1 %	1 %	2 %	2 %	1.1%
10 pm	3 %	2 %	0 %	1 %	0 %	0 %	0 %	0 %	0 %	0 %	2 %	1 %	0.8%

Ceiling less than 200 feet and/or Visibility less than 1/2 mile (VLIFR)
Hour	Jan	Feb	Mar	Apr	May	Sep	Oct	Nov	Dec	Ann
1 am	1 %	1 %	1 %	0 %	0 %	0 %	0 %	1 %	1 %	0.4%
4 am	3 %	2 %	1 %	0 %	0 %	0 %	0 %	1 %	2 %	0.8%
7 am	4 %	2 %	1 %	0 %	0 %	0 %	1 %	2 %	3 %	1.1%
10 am	6 %	4 %	1 %	1 %	0 %	0 %	2 %	3 %	3 %	1.7%
1 pm	5 %	6 %	2 %	1 %	1 %	1 %	3 %	3 %	4 %	2.2%
4 pm	3 %	3 %	0 %	0 %	0 %	0 %	0 %	1 %	2 %	0.8%
7 pm	1 %	1 %	0 %	0 %	0 %	0 %	0 %	0 %	1 %	0.3%
10 pm	1 %	0 %	0 %	0 %	0 %	0 %	0 %	1 %	0 %	0.2%

Ceiling less than or = to 3000 feet and/or Visibility less than or = to 5 miles
Hour	Jan	Feb	Mar	Apr	May	Sep	Oct	Nov	Dec	Ann
1 am	15%	12%	10%	5 %	5 %	0 %	0 %	1 %	1 %	0.4%
4 am	16%	14%	11%	0 %	6 %	0 %	0 %	1 %	2 %	0.8%
7 am	18%	17%	16%	0 %	11%	0 %	1 %	2 %	3 %	1.1%
10 am	22%	23%	17%	1 %	16%	0 %	2 %	3 %	3 %	1.7%
1 pm	25%	26%	21%	1 %	1 %	1 %	3 %	3 %	4 %	2.2%
4 pm	24%	22%	16%	0 %	0 %	0 %	0 %	1 %	2 %	0.8%
7 pm	19%	18%	12%	0 %	0 %	0 %	0 %	0 %	1 %	0.3%
10 pm	16%	13%	9 %	0 %	0 %	0 %	0 %	1 %	0 %	0.2%

Ceiling less than 1000 feet and/or Visibility less than 3 miles
Hour	Jan	Feb	Mar	Apr	May	Jun	July	Aug	Sep	Oct	Nov	Dec	Ann
1 am	8%	12%	4%	1 %	1 %	0 %	0 %	0 %	2 %	2 %	6 %	6 %	3.5%
4 am	10%	8%	4%	2 %	1 %	0 %	0 %	0 %	3 %	4 %	6 %	8 %	3.8%
7 am	12%	10%	6%	2 %	2 %	1 %	1 %	1 %	5 %	7 %	10%	9 %	5.5%
10 am	15%	15%	7%	6 %	4 %	1 %	2 %	2 %	7 %	11%	13%	11%	7.8%
1 pm	17%	18%	9%	9 %	7 %	3 %	3 %	3 %	10%	14%	15%	11%	9.9%
4 pm	16%	14%	6%	4 %	3 %	1 %	1 %	1 %	7 %	8 %	10%	11%	6.8%
7 pm	10%	9%	4%	1 %	1 %	0 %	0 %	0 %	4 %	4 %	6%	7 %	3.8%
10 pm	8%	5%	2 %	3 %	1 %	0 %	1 %	0 %	2 %	2 %	5%	5 %	2.8%

Ceiling less than 500 feet and/or Visibility less than 1 mile
Hour	Jan	Feb	Mar	Apr	May	Jun	July	Aug	Sep	Oct	Nov	Dec	Ann
1 am	4 %	2 %	1 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	2 %	2 %	0.9%
4 am	4 %	2 %	1 %	1 %	0 %	0 %	0 %	0 %	1 %	1 %	2 %	2 %	1.2%
7 am	4 %	3 %	2 %	1 %	1 %	0 %	0 %	0 %	2 %	2 %	3 %	2 %	1.7%
10 am	5 %	4 %	2 %	1 %	1 %	0 %	0 %	0 %	3 %	3 %	5 %	4 %	2.3%
1 pm	6 %	5 %	3 %	2 %	1 %	1 %	1 %	1 %	4 %	4 %	6 %	4 %	3.2%
4 pm	6 %	5 %	2 %	1 %	1 %	0 %	0 %	0 %	2 %	2 %	4 %	4 %	2.3%
7 pm	4 %	2 %	1 %	0 %	0 %	0 %	0 %	0 %	1 %	1 %	2 %	2 %	1.1%
10 pm	3 %	2 %	0 %	1 %	0 %	0 %	0 %	0 %	0 %	0 %	2 %	1 %	0.8%

Ceiling less than 200 feet and/or Visibility less than 1/2 mile
Hour	Jan	Feb	Mar	Apr	May	Sep	Oct	Nov	Dec	Ann
1 am	1 %	1 %	1 %	0 %	0 %	0 %	0 %	1 %	1 %	0.4%
4 am	3 %	2 %	1 %	0 %	0 %	0 %	0 %	1 %	2 %	0.8%
7 am	4 %	2 %	1 %	0 %	0 %	0 %	1 %	2 %	3 %	1.1%
10 am	6 %	4 %	1 %	1 %	0 %	0 %	2 %	3 %	3 %	1.7%
1 pm	5 %	6 %	2 %	1 %	1 %	1 %	3 %	3 %	4 %	2.2%
4 pm	3 %	3 %	0 %	0 %	0 %	0 %	0 %	1 %	2 %	0.8%
7 pm	1 %	1 %	0 %	0 %	0 %	0 %	0 %	0 %	1 %	0.3%
10 pm	1 %	0 %	0 %	0 %	0 %	0 %	0 %	1 %	0 %	0.2%

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The Work Week will Begin with Unsettled Weather from the Southern Plains to the Great Lakes

Aviation Climatology for KMAF

KMAF Aviation Climatology