Climate and monthly weather forecastPortis, KS
Climate and monthly weather forecast
Weather in January
January, like December, in Portis, Kansas, is a wintry winter month, with an average temperature varying between 39.9°F (4.4°C) and 23.9°F (-4.5°C). January, having an average high-temperature of 39.9°F (4.4°C) and an average low-temperature of 23.9°F (-4.5°C), is the coldest month. Weather in January »Weather in February
February, the last month of the winter in Portis, is a chilly month, with an average temperature ranging between min 25.7°F (-3.5°C) and max 43.3°F (6.3°C). Portis's February reports an average high-temperature of a chilly 43.3°F (6.3°C), exhibiting a minor difference from January. Weather in February »Weather in March
The first month of the spring, March, is a moderate month in Portis, Kansas, with an average temperature ranging between max 56.7°F (13.7°C) and min 36.9°F (2.7°C). The shift into March brings an increase in the average high-temperature, moving from a chilly 43.3°F (6.3°C) in February to a refreshing 56.7°F (13.7°C). Weather in March »Weather in April
April in Portis, Kansas, is a refreshing spring month, with an average temperature ranging between min 44.2°F (6.8°C) and max 65.5°F (18.6°C). Portis's transition into April is noticed by a slight rise in the average high-temperature, advancing from 56.7°F (13.7°C) in March to a still refreshing 65.5°F (18.6°C). Weather in April »Weather in May
The last month of the spring, May, is a warm month in Portis, Kansas, with an average temperature varying between 54.3°F (12.4°C) and 74.3°F (23.5°C). The commencement of May sees a minor shift in the average high-temperature, moving from a refreshing 65.5°F (18.6°C) in April to a moderately hot 74.3°F (23.5°C). Weather in May »Weather in June
June, the first month of the summer in Portis, is a hot month, with an average temperature fluctuating between 88.5°F (31.4°C) and 67.5°F (19.7°C). June's arrival sees a rise in the average high-temperature, jumping from May's moderately hot 74.3°F (23.5°C) to a hot 88.5°F (31.4°C). Weather in June »Weather in July
July, the same as June, in Portis, Kansas, is another tropical summer month, with an average temperature ranging between max 92.5°F (33.6°C) and min 70.5°F (21.4°C). In Portis, the average temperatures in July are the highest, with a peak at 92.5°F (33.6°C) and a low of 70.5°F (21.4°C). July's average heat index is evaluated at a blistering 104°F (40°C). Weather in July »Weather in August
The last month of the summer, August, is another tropical month in Portis, Kansas, with an average temperature varying between 89.8°F (32.1°C) and 67.3°F (19.6°C). The onset of August brings with it an average high-temperature of a still hot 89.8°F (32.1°C), showing a negligible variation from the month before. Weather in August »Weather in September
September, the first month of the autumn in Portis, is still a warm month, with an average temperature fluctuating between 81.3°F (27.4°C) and 60.6°F (15.9°C). September marks a gentle change in average high-temperature, declining from August's tropical 89.8°F (32.1°C) to a warm 81.3°F (27.4°C). Weather in September »Weather in October
October, like September, in Portis, Kansas, is another refreshing autumn month, with an average temperature fluctuating between 48°F (8.9°C) and 66.4°F (19.1°C). The transition from September to October brings a clear temperature drop, with average high-temperatures decreasing from a warm 81.3°F (27.4°C) to a comfortable 66.4°F (19.1°C). Weather in October »Weather in November
November, the last month of the autumn in Portis, is also a fresh month, with temperature in the range of an average high of 54°F (12.2°C) and an average low of 36°F (2.2°C). The decrease of average high-temperatures is mild in November, with a decline from an enjoyable 66.4°F (19.1°C) in October to a fresh 54°F (12.2°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Portis, Kansas, with an average temperature fluctuating between 25.5°F (-3.6°C) and 40.6°F (4.8°C). In December, the meteorological conditions alter, with the average high-temperature shifting from a cool 54°F (12.2°C) in November to an icy 40.6°F (4.8°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Portis, KS
The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is January (39.9°F).
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure
Portis, KS
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.9"Hg - Average pressure in May:
29.9"Hg - Average pressure in June:
29.85"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.93"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed
Portis, KS
- Average wind speed in January:
10.1mph - Average wind speed in February:
10.6mph - Average wind speed in March:
11.2mph - Average wind speed in April:
11.7mph - Average wind speed in May:
10.3mph - Average wind speed in June:
10.4mph
- Average wind speed in July:
9.2mph - Average wind speed in August:
8.9mph - Average wind speed in September:
10.1mph - Average wind speed in October:
10.4mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).
Average humidity
Portis, KS
The months with the highest relative humidity are January and December (69%).
The month with the lowest relative humidity is July (57%).
Average rainfall
Portis, KS
- Average rainfall in January:
0.59" - Average rainfall in February:
0.67" - Average rainfall in March:
1.1" - Average rainfall in April:
1.73" - Average rainfall in May:
3.74" - Average rainfall in June:
2.17"
- Average rainfall in July:
2.24" - Average rainfall in August:
2.48" - Average rainfall in September:
1.42" - Average rainfall in October:
1.73" - Average rainfall in November:
0.75" - Average rainfall in December:
1.14"
The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days
Portis, KS
- Average rainfall days in January:
3.8 days - Average rainfall days in February:
4.2 days - Average rainfall days in March:
9.4 days - Average rainfall days in April:
11.5 days - Average rainfall days in May:
14.4 days - Average rainfall days in June:
12.8 days
- Average rainfall days in July:
13.4 days - Average rainfall days in August:
13.1 days - Average rainfall days in September:
10.4 days - Average rainfall days in October:
8.6 days - Average rainfall days in November:
4.4 days - Average rainfall days in December:
4.3 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is January (3.8 days).
Average snowfall
Portis, KS
- Average snowfall in January:
1.69" - Average snowfall in February:
2.2" - Average snowfall in March:
1.26" - Average snowfall in April:
0.35" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Portis, KS
- Average snowfall days in January:
4.9 days - Average snowfall days in February:
6.3 days - Average snowfall days in March:
3.1 days - Average snowfall days in April:
0.8 days - Average snowfall days in May:
0.2 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.7 days - Average snowfall days in November:
1.9 days - Average snowfall days in December:
4.7 days
The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Portis, KS
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
6h and 6min - Average sunshine in February:
7h and 18min - Average sunshine in March:
7h and 42min - Average sunshine in April:
8h and 48min - Average sunshine in May:
9h and 30min - Average sunshine in June:
11h and 12min
- Average sunshine in July:
11h and 6min - Average sunshine in August:
10h and 48min - Average sunshine in September:
8h and 42min - Average sunshine in October:
7h and 18min - Average sunshine in November:
6h and 36min - Average sunshine in December:
6h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days
Portis, KS
- Average sunshine days in January:
22.6 days - Average sunshine days in February:
18.7 days - Average sunshine days in March:
18.3 days - Average sunshine days in April:
15.3 days - Average sunshine days in May:
13.5 days - Average sunshine days in June:
13.8 days
- Average sunshine days in July:
14.2 days - Average sunshine days in August:
14.8 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
23.5 days - Average sunshine days in December:
22.2 days
The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is May (13.5 days).
Average UV index
Portis, KS
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Portis, KS
The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is June (Cloud cover 21).
Average visibility
Portis, KS
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).





