Climate and monthly weather forecastFortuna, MO
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Fortuna, Missouri, with temperature in the range of an average high of 37.4°F (3°C) and an average low of 23.7°F (-4.6°C). Fortuna witnesses the coldest weather in January, with temperatures averaging a high of 37.4°F (3°C) and a low of 23.7°F (-4.6°C). Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Fortuna, Missouri, with an average temperature varying between 26.6°F (-3°C) and 41.9°F (5.5°C). The dawn of February sees an average high-temperature of a still wintry 41.9°F (5.5°C), subtly contrasting with January's 37.4°F (3°C). Weather in February »Weather in March
March, the first month of the spring in Fortuna, is a fresh month, with an average temperature fluctuating between 37.8°F (3.2°C) and 54.3°F (12.4°C). With the onset of March, Fortuna experiences a temperature shift, with the average high-temperature moving from an icy 41.9°F (5.5°C) in February to a cool 54.3°F (12.4°C). Weather in March »Weather in April
April is a refreshing spring month in Fortuna, Missouri, with an average temperature ranging between min 46.2°F (7.9°C) and max 65.3°F (18.5°C). April's arrival coincides with a temperature rise, moving from March's cool 54.3°F (12.4°C) to a refreshing 65.3°F (18.5°C). Weather in April »Weather in May
The last month of the spring, May, is a warm month in Fortuna, Missouri, with an average temperature ranging between max 74.5°F (23.6°C) and min 55.9°F (13.3°C). May brings a rise in Fortuna's average high-temperature, moving from a comfortable 65.3°F (18.5°C) in April to a warm 74.5°F (23.6°C). Weather in May »Weather in June
June, the first month of the summer in Fortuna, is also a moderately hot month, with an average temperature fluctuating between 65.8°F (18.8°C) and 84.7°F (29.3°C). With the beginning of June, Fortuna's average high-temperature sees an increase, transitioning from 74.5°F (23.6°C) in May to a still warm 84.7°F (29.3°C). Weather in June »Weather in July
July is a tropical summer month in Fortuna, Missouri, with an average temperature ranging between max 87.4°F (30.8°C) and min 68°F (20°C). July is Fortuna's warmest month, registering average high temperatures of 87.4°F (30.8°C) and lows of 68°F (20°C). July's mean heat index is evaluated at a torrid 102.2°F (39°C). Weather in July »Weather in August
August, the last month of the summer in Fortuna, is another warm month, with an average temperature varying between 65.8°F (18.8°C) and 85.8°F (29.9°C). The advent of August brings an average high-temperature of a warm 85.8°F (29.9°C), almost identical to the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Fortuna, Missouri, with an average temperature varying between 59.4°F (15.2°C) and 79.5°F (26.4°C). September implies a soft temperature shift, with average high-temperatures reducing from August's moderately hot 85.8°F (29.9°C) to a still warm 79.5°F (26.4°C). Weather in September »Weather in October
October, like September, in Fortuna, Missouri, is another comfortable autumn month, with an average temperature fluctuating between 47.8°F (8.8°C) and 65.5°F (18.6°C). In October, the average high-temperature decreases from a moderately hot 79.5°F (26.4°C) in September to a refreshing 65.5°F (18.6°C). Weather in October »Weather in November
The last month of the autumn, November, is also a fresh month in Fortuna, Missouri, with an average temperature varying between 52.9°F (11.6°C) and 36.9°F (2.7°C). Setting in of November comes with a decrease in the average high-temperature, moving from an enjoyable 65.5°F (18.6°C) in October to a fresh 52.9°F (11.6°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Fortuna, Missouri, with an average temperature fluctuating between 28.6°F (-1.9°C) and 41.7°F (5.4°C). Stepping into December, Fortuna observes a temperature decline, with the average high falling from November's cool 52.9°F (11.6°C) to a cold 41.7°F (5.4°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Fortuna, MO
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (37.4°F).
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure
Fortuna, MO
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Fortuna, MO
- Average wind speed in January:
9.5mph - Average wind speed in February:
9.3mph - Average wind speed in March:
9.5mph - Average wind speed in April:
9.3mph - Average wind speed in May:
7.8mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.3mph - Average wind speed in September:
6.6mph - Average wind speed in October:
8.2mph - Average wind speed in November:
8.9mph - Average wind speed in December:
9.1mph
The windiest months (with the highest average wind speed) are January and March (9.5mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity
Fortuna, MO
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Fortuna, MO
- Average rainfall in January:
1.3" - Average rainfall in February:
1.61" - Average rainfall in March:
2.44" - Average rainfall in April:
3.5" - Average rainfall in May:
4.25" - Average rainfall in June:
3.03"
- Average rainfall in July:
3.15" - Average rainfall in August:
2.6" - Average rainfall in September:
2.28" - Average rainfall in October:
2.32" - Average rainfall in November:
1.65" - Average rainfall in December:
1.57"
The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is January (1.3").
Average rainfall days
Fortuna, MO
- Average rainfall days in January:
6.2 days - Average rainfall days in February:
8 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
16.9 days - Average rainfall days in June:
15.2 days
- Average rainfall days in July:
15.6 days - Average rainfall days in August:
14 days - Average rainfall days in September:
11.8 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
6.6 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.2 days).
Average snowfall
Fortuna, MO
The month with the highest snowfall is February (3.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Fortuna, MO
- Average snowfall days in January:
6 days - Average snowfall days in February:
6.8 days - Average snowfall days in March:
2.8 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0.1 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:
0.2 days - Average snowfall days in November:
0.9 days - Average snowfall days in December:
3.9 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Fortuna, MO
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 48min
- Average daylight in July:
14h and 30min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
4h and 54min - Average sunshine in February:
4h and 54min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 24min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 36min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 18min - Average sunshine in September:
9h and 30min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 30min - Average sunshine in December:
5h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 54min).
Average sunshine days
Fortuna, MO
- Average sunshine days in January:
19.3 days - Average sunshine days in February:
14.9 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
10.9 days - Average sunshine days in June:
13 days
- Average sunshine days in July:
12.5 days - Average sunshine days in August:
14.2 days - Average sunshine days in September:
16.2 days - Average sunshine days in October:
18.6 days - Average sunshine days in November:
20 days - Average sunshine days in December:
20.3 days
The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is May (10.9 days).
Average UV index
Fortuna, MO
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Fortuna, MO
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and August (Cloud cover 27).
Average visibility
Fortuna, MO
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).





