Climate and monthly weather forecastHazelwood, MO
Climate and monthly weather forecast
The climate of Hazelwood
Hazelwood, located in Missouri, USA, is categorized under the Köppen climate classification as a humid subtropical zone with no dry season. Throughout the year, the city experiences significant variances in climatic elements with temperatures ranging from lows around 24.3°F (-4.3°C) in January to highs touching 86.7°F (30.4°C) in July. July is also regarded as the most humid month with a relative humidity of 76%.A notable pattern in Hazelwood's climatic elements is the amount of rainfall the city receives. From January to December, rainfall ranges from 1.42" (36mm) to 3.31" (84mm) with May witnessing the maximum precipitation. Snowfall in the city is another distinguishing feature, happening between January to March and again in November and December, ranging from 0.51" (13mm) to 2.05" (52mm).
A continuous shift in daylight hours is also observed across the year, with the longest daytime duration of 14.9 hours occurring in June, and the shortest daylight of 9.5 hours in December. Equally, the amount of sunshine Hazelwood gets fluctuates, reaching a peak of 10.6 hours per day in July and dropping to a low point of 4.6 hours per day in January.
The best time to visit Hazelwood
For visitors planning a trip to Hazelwood, the months from May to September provide appropriate weather conditions for outdoor activities. Average high temperatures in these months range from 74.8°F (23.8°C) to 86.7°F (30.4°C), while the average low temperatures still remain pleasant enough, falling between 57.6°F (14.2°C) to 68.9°F (20.5°C). Furthermore, these months also register the highest daylight with an average above 13.6 hours, enabling visitors to enjoy extended outdoor experiences.The worst time to visit Hazelwood
Travelers may want to avoid the months of January and February. Despite the unique beauty of Hazelwood in winter, the biting cold characterized by an average low temperature of 24.3°F (-4.3°C) in January and 27.5°F (-2.5°C) in February, coupled with the limited daylight hours falling to 9.8 hours in January and 10.8 hours in February, may pose challenges to outdoor plans. Snowfall during these months can exert a limiting effect on travel and outdoor activities as well.Spring weather in Hazelwood
Spring in Hazelwood begins in March and lasts till May. March sees a significant rise in temperature with average highs reaching 54.1°F (12.3°C) and lows touching 37.9°F (3.3°C). However, there is a noticeable jump in temperature by May with average highs reaching 74.8°F (23.8°C) and lows settling at 57.6°F (14.2°C). Rainfall tends to increase during this period, peaking at 3.31" (84mm) in May.Summer weather in Hazelwood
Coming to the summer season, from June to August, conditions are warm with average high temperatures fluctuating from 84.2°F (29°C) to 86.7°F (30.4°C) and average low temperatures staying between 66.7°F (19.3°C) to 68.9°F (20.5°C). These months witness longer periods of daylight, surpassing 14 hours per day, allowing ample sunlight for enjoyment.Autumn weather in Hazelwood
Autumn truly comes to Hazelwood in September and lasts till November, with temperatures taking a gentle dip. In November, temperature lows reach 37.9°F (3.3°C) while highs stand at 53.2°F (11.8°C). Rainfall lowers significantly by November, standing at 1.61" (41mm), providing largely dry days.Winter weather in Hazelwood
Winter in Hazelwood spans from December to February. The city dawns a frosty look in December with high temperatures averaging at 42.1°F (5.6°C) and lows dropping to 30°F (-1.1°C). Also, the city witnesses the most prominent snowfall during January with about 2.05" (52mm). With daylight hours at their lowest point of the year, the city sees a decrease in outdoor activities. Weather during these months tends to be cold and frosty, with crisp winds averaging 8.6mph (13.8km/h) in December and 9.1mph (14.6km/h) in February.Weather in January
January in Hazelwood, Missouri ushers in the frigid charm of winter. Temperatures take a dip, with highs of 37.2°F (2.9°C) and lows reaching 24.3°F (-4.3°C). The month is characterized by a considerable cloud cover, as well as significant snowfall. Weather in January »Weather in February
While February continues the winter streak of January, it brings with it slightly warmer temperatures. The Hazelwood weather becomes more comfortable, despite the additional snowfall of 2.05" (52mm). The daylight increases to an average of 10.8 hours per day, providing residents with more time to engage in outdoor activities. Weather in February »Weather in March
March announces the advent of Spring in Hazelwood with average temperatures rising significantly to a high of 54.1°F (12.3°C) and low of 37.9°F (3.3°C). The city brightens up as the snow retreats and rainfall increases to nearly 1.97" (50mm). Weather in March »Weather in April
April is characterized by further escalation in temperatures, marking a complete transition from the chills of winter to the freshness of spring. The highest precipitation for the year is recorded in this month, amounting to 3.19" (81mm). Weather in April »Weather in May
May typically sees the advent of summer, elevating average temperatures as high as 74.8°F (23.8°C) and as low as 57.6°F (14.2°C). With rainfall of around 3.31" (84mm), May is the month with the maximum rainfall. Despite the warmer temperatures, the weather remains pleasant, making way for several outdoor events in the city. As May begins, there is an increase in the average high-temperature, moving from an enjoyable 65.3°F (18.5°C) in April to a warm 74.8°F (23.8°C). Weather in May »Weather in June
June marks the start of summer in full swing. It brings with it high humidity levels and longer daylight hours as compared to the preceding month. The absence of snowfall and the onset of warm winds increase the overall feel of heat. Weather in June »Weather in July
July is noticeably the warmest month in Hazelwood, with temperatures peaking at 86.7°F (30.4°C). Hazelwood's weather in July is characterized by high humidity levels, prominent sunshine hours, and the absence of snowfall. Despite the heat, the city buzzes with summer activities and nightlife. In Hazelwood, July records the highest average temperatures, peaking at 86.7°F (30.4°C) and reaching a low of 68.9°F (20.5°C). The heat index value for July is computed to be a very hot 100.4°F (38°C). Weather in July »Weather in August
August, while still being warm, gives the first signs of an upcoming fall, as the temperature slightly drops to a high of 85.5°F (29.7°C). Despite being one of the warmest months, it comes with decreased daylight hours. While the city still basks under the summer sun, evenings begin to get cooler, indicative of the approaching fall season. Hazelwood records an average high-temperature of a moderately hot 85.5°F (29.7°C) in August, closely mirroring the climate of the previous month. Weather in August »Weather in September
September officially ushers in autumn in Hazelwood, Missouri. With temperatures dropping to a high of 79.7°F (26.5°C), autumnal hues start to take over the city. Although the weather remains warm, the decrease in humidity and normalization of wind speeds signify the retreat of the scorching summer months. In Hazelwood, the average high-temperature in September slightly decreases from 85.5°F (29.7°C) in August to a still warm 79.7°F (26.5°C). Weather in September »Weather in October
October in Hazelwood witnesses the peak of Autumn. The landscape is covered with vibrant fall colors, complemented by a dip in temperature. Patchy rain showers and lower humidity levels are common, while warm drinks and cozy sweaters become a necessity. The arrival of October corresponds with a reduction in the average high-temperature, down from September's moderately hot 79.7°F (26.5°C) to an enjoyable 66°F (18.9°C). Weather in October »Weather in November
November is indicative of the looming winter with a further plunge in temperature and the start of light snowfall of around 0.51" (13mm). While the chilly breeze and shorter days mark the onset of winter, remaining fall colors provide a spectacular sight. Weather in November »Weather in December
December finally ushers in winter with temperatures falling to a low of 30°F (-1.1°C). Snowfall increases significantly to 1.81" (46mm) and daylight hours are the shortest in the year. Gloved hands, warm clothes, and hot drinks appear to be the city’s winter staples, while it dresses in holiday decorations to celebrate the festive season. December's onset corresponds with a shift in the average high-temperature, moving from a cool 53.2°F (11.8°C) in November to a cold 42.1°F (5.6°C). Weather in December »Updated: Jul 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January, known for its average high temperature of 37.2°F (2.9°C) and an average low temperature of 24.3°F (-4.3°C), is the coldest month.
In Hazelwood, during the entire year, the rain falls for 141.9 days and collects up to 27.68" (703mm) of precipitation.
Months with snowfall are January through March, November and December.
Throughout the year, there are 21.6 snowfall days, and 6.73" (171mm) of snow is accumulated.
With an average of 4.6h of sunshine, January has the least sunshine of the year.
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2.
February is the month with the least rainfall in Hazelwood. Rain falls for 7.3 days and accumulates 1.42" (36mm) of precipitation.
February is the month with the most snowfall. Snow falls for 6.2 days and accumulates 2.05" (52mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
In Hazelwood, Missouri, snow does not fall in April through October.
The most humid month is May, with an average relative humidity of 77%.
May is the month with the most rainfall. Rain falls for 16 days and accumulates 3.31" (84mm) of precipitation.
May through August, with an average maximum UV index of 6, are months with the highest UV index in Hazelwood.
June has the longest days of the year, with an average of 14h and 48min of daylight.
Hazelwood's warmest weather arrives in July, when temperatures average a high of 86.7°F (30.4°C) and a low of 68.9°F (20.5°C).
The month with the most sunshine is July, with an average of 10.6h of sunshine.
The least humid month is October, with an average relative humidity of 70%.
December has the shortest days of the year, with an average of 9h and 30min of daylight.
Average temperature
Hazelwood, MO
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (37.2°F).
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure
Hazelwood, MO
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.92"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:
30.12"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 (29.92"Hg).
Average wind speed
Hazelwood, MO
- Average wind speed in January:
9.3mph - Average wind speed in February:
9.1mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.9mph - Average wind speed in May:
7.3mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
5.6mph - Average wind speed in August:
5.6mph - Average wind speed in September:
6.1mph - Average wind speed in October:
7.9mph - Average wind speed in November:
8.5mph - Average wind speed in December:
8.6mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity
Hazelwood, MO
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Hazelwood, MO
- Average rainfall in January:
1.61" - Average rainfall in February:
1.42" - Average rainfall in March:
1.97" - Average rainfall in April:
3.19" - Average rainfall in May:
3.31" - Average rainfall in June:
3.03"
- Average rainfall in July:
2.87" - Average rainfall in August:
2.95" - Average rainfall in September:
1.73" - Average rainfall in October:
2.24" - Average rainfall in November:
1.61" - Average rainfall in December:
1.73"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days
Hazelwood, MO
- Average rainfall days in January:
7.8 days - Average rainfall days in February:
7.3 days - Average rainfall days in March:
12.9 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
16 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
13.2 days - Average rainfall days in September:
12.3 days - Average rainfall days in October:
10.3 days - Average rainfall days in November:
8.9 days - Average rainfall days in December:
7.3 days
The month with the highest number of rainy days is July (16.3 days).
The months with the least rainy days are February and December (7.3 days).
Average snowfall
Hazelwood, MO
The month with the highest snowfall is February (2.05").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Hazelwood, MO
- Average snowfall days in January:
6.8 days - Average snowfall days in February:
6.2 days - Average snowfall days in March:
2.4 days - Average snowfall days in April:
0.2 days - Average snowfall days in May:
0 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:
0.1 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
4.4 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Hazelwood, 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 36min - 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 36min - Average sunshine in February:
4h and 42min - Average sunshine in March:
6h and 30min - Average sunshine in April:
8h and 36min - Average sunshine in May:
9h and 30min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 18min - Average sunshine in September:
9h and 36min - Average sunshine in October:
6h and 12min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days
Hazelwood, MO
- Average sunshine days in January:
18.7 days - Average sunshine days in February:
14.7 days - Average sunshine days in March:
14.4 days - Average sunshine days in April:
13.2 days - Average sunshine days in May:
12.1 days - Average sunshine days in June:
11.8 days
- Average sunshine days in July:
11.4 days - Average sunshine days in August:
13.4 days - Average sunshine days in September:
15.3 days - Average sunshine days in October:
19.2 days - Average sunshine days in November:
18.2 days - Average sunshine days in December:
18.8 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (11.4 days).
Average UV index
Hazelwood, MO
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover
Hazelwood, MO
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility
Hazelwood, 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).
