Climate and monthly weather forecastSmyrna, DE
Climate and monthly weather forecast
The climate of Smyrna
Nestled in the state of Delaware, USA, Smyrna experiences a Humid subtropical climate. This climatic condition is often classified under Köppen's Cfa category, indicating that the location does not go through a dry season. Throughout the year, Smyrna experiences considerable variations in temperature, rainfall, and humidity levels, contributing to its seasonal weather patterns.On average, temperatures in Smyrna range from 27.9°F (-2.3°C) in the colder months to 84.4°F (29.1°C) in the warmest months. Maximum temperatures tends to peak in July at 84.4°F (29.1°C) and dip to their lowest in January at 27.9°F (-2.3°C). Simultaneously, relative humidity remains fairly constant throughout the year, ranging between 73% and 79%.
Rainfall in Smyrna varies from 2.13" (54mm) to 3.86" (98mm) each month. Maximum rainfall tends to occur in August, while February experiences the least rainfall. Regarding snowfall, it is primarily of winter's domain, with values peaking in March at 2.6" (66mm), while summer months go without any snow.
Smyrna receives about 5.3 hours to 10.7 hours of sunshine per day throughout the year. The sunniest month tends to be July with 10.7 hours of sunshine, while January sees the shortest days with 5.3 hours of sunshine. The average wind speed in Smyrna typically fluctuates between 6.1mph (9.8km/h) and 9.5mph (15.3km/h).
The best time to visit Smyrna
While the choice of visiting Smyrna depends largely on individual preferences, the months from May to September offer the most favorable conditions. During these months, temperatures range from 62.2°F (16.8°C) to 84.4°F (29.1°C), creating an ideal environment for outdoor activities. The city also experiences relatively low humidity levels during the summer, thereby enhacing visitor comfort. Smyrna bathes in the longest daylight during these months, with up to 14.9 hours in June providing ample time for sightseeing and exploration.The worst time to visit Smyrna
Visiting Smyrna in the colder months from November to February may not be quite as pleasant. During this period, temperatures fall to between 27.9°F (-2.3°C) and 50.2°F (10.1°C), which may impact outdoor activities. In addition, rainfall and snowfall increase during this period, which coupled with the low temperatures, could potentially disrupt travel plans.Spring weather in Smyrna
At Smyrna, spring spans from March to May, witnessing steady increase in daily temperatures. March begins with an average low temperature of 36.7°F (2.6°C) and reaches a high of 50.2°F (10.1°C), while May sees a significant climb with temperatures fluctuating between 55.9°F (13.3°C) and 71.2°F (21.8°C). The total monthly rainfall in spring ranges from 2.64" (67mm) to 3.07" (78mm). Despite the rainfall, spring ushers in longer days, with sunshine hours progressively increasing from 6.7 hours in March to 8.9 hours by May.Summer weather in Smyrna
Summer in Smyrna lasts from June through August, with temperatures reaching their peak. The average high temperature in summer hovers around 82.4°F (28°C), with a low near 64°F (17.8°C). Relative humidity dips slightly during the summer months, providing respite from any oppressive heat. Sunshine at its maximum during these months, with daylight stretching to 14.9 hours in June.Autumn weather in Smyrna
Autumn arrives in Smyrna in September and lasts until November. This period witnesses a gradual decline in temperature. September hosts a high of 76.6°F (24.8°C) and a low of 61.9°F (16.6°C), which is further decreased to 54°F (12.2°C) and 41.2°F (5.1°C) by November. Rainfall lies between 2.28" (58mm) to 2.87" (73mm) during the autumn months, and daylight hrs steadily decrease from September's 12.4 hours to November's 10 hours.Winter weather in Smyrna
During winter in Smyrna, from December to February, temperatures can drop as low as 27.9°F (-2.3°C). The average high temperature in winter stays around 45.9°F (7.7°C). These months are characterized by increased precipitation, with average monthly rainfall reaching its apex at 3.43" (87mm) in December. Snowfall is common during winter, with a maximum of 2.09" (53mm) recorded in December. Despite the cold, sunshine hours are balanced between 5.2 hours to 5.3 hours during the winter months, with longer nights dominant in this season.Weather in January
Smyrna starts the year with a noticeably chilly weather, as is expected during winter. January sees the lowest temperatures of the year, with an average low of 27.9°F (-2.3°C) and a high just barely peaking at 39.2°F (4°C). Weather in January »Weather in February
Moving into the month of February, Smyrna witnesses a mild elevation in temperatures. The average high and low temperatures increase to 43°F (6.1°C) and 29.8°F (-1.2°C) respectively, signifying the subtle transition towards the spring season. Weather in February »Weather in March
March ushers in the spring season in Smyrna, along with a substantial spike in temperature reaching an average high of 50.2°F (10.1°C) from 43°F (6.1°C) previously. The change in season also triggers a rise in rainfall from 2.64" (67mm) in February to 2.91" (74mm), indicating wetter weather conditions. Weather in March »Weather in April
April continues to elevate the temperature further, offering a warmer weather trend. Smyrna experiences a significant jump in average high temperatures, reaching 62.2°F (16.8°C), much warmer compared to the previous month's high of 50.2°F (10.1°C). Weather in April »Weather in May
May brings sustained warmth and a spike in the relative humidity to 79%, the highest of the year, in addition to longer daylight hours. Average high temperature continues to climb up to 71.2°F (21.8°C), a significant raise considering the gradual increase witnessed in previous months. Weather in May »Weather in June
June marks the official onset of summer in Smyrna with even longer daylight hours and more sunshine. Prolonged sunshine extends up to 14.9 hours per day, marking it as the month with the longest daylight period in the year. Average high temperature rises further up to 79.3°F (26.3°C). Weather in June »Weather in July
July signifies the peak of summer in Smyrna with the highest average temperatures of the year. The mercury hits an average high of 84.4°F (29.1°C), this is the hottest month of the year in the region. Despite the heat, rainfall remains high with close to 3.62" (92mm) expected. Weather in July »Weather in August
August signals the tail end of summer, with temperatures slightly dipping to an average high of 82.4°F (28°C), after the July heat. Cloud cover percentage shows a minimal increase, indicating more overcast skies compared to previous months. Weather in August »Weather in September
September in Smyrna represents a transition phase from summer to fall with temperatures dipping further from August's readings. A more significant drop in average high temperatures is observed, plunging to 76.6°F (24.8°C). Rainfall decreases considerably from August, and relative humidity drops as well, marking a shift toward the drier fall season. Weather in September »Weather in October
October brings fall weather in full swing to Smyrna. From a temperature standpoint, there is a noticeable difference from the last month, with average highs dipping to a much cooler 65.5°F (18.6°C). Wind speed begins to pick up, indicating a shift towards winter weather. Weather in October »Weather in November
November in Smyrna sees a substantial drop in temperature indicating the onset of winter. The average high drops substantially to 54°F (12.2°C) while snowfall witnesses a return, albeit small, after being absent since April. Weather in November »Weather in December
December in Smyrna brings in the winter chill along with festive vibes. The average high temperature dips to 45.9°F (7.7°C), marking a clear shift to winter. The snowfall increases from the November levels, adding to the festive spirit. Weather in December »Updated: Aug 5, 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
In Smyrna, January is known for its average lowest temperatures, reaching a high of 39.2°F (4°C) and a low of 27.9°F (-2.3°C).
The month with the least rainfall is January, when the rain falls for 9.7 days and typically collects 2.13" (54mm) of precipitation.
Throughout the year, there are 169.2 rainfall days, and 34.96" (888mm) of precipitation is accumulated.
January through April, November and December are months with snowfall.
In Smyrna, Delaware, during the entire year, snow falls for 14.4 days and aggregates up to 7.44" (189mm) of snow.
January and December, with an average maximum UV index of 2, are months with the lowest UV index.
February has the least sunshine of the year, with an average of 5.1h of sunshine.
March is the month with the most snowfall. Snow falls for 2.8 days and accumulates 2.6" (66mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Smyrna, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
April is the least humid month, with an average relative humidity of 73%.
The most humid month is May, with an average relative humidity of 79%.
May through October are months without snowfall.
May through August, with an average maximum UV index of 6, are months with the highest UV index.
June has the longest days of the year, with an average of 14h and 54min of daylight.
July is the warmest month, exhibiting average temperatures of 84.4°F (29.1°C) at the peak and 69.3°F (20.7°C) at the base.
With an average of 10.7h of sunshine, July has the most sunshine of the year in Smyrna.
August is the month with the most rainfall. Rain falls for 16.4 days and accumulates 3.86" (98mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 30min of daylight.
Average temperature
Smyrna, DE
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (39.2°F).
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).
Average pressure
Smyrna, DE
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Smyrna, DE
- Average wind speed in January:
9.4mph - Average wind speed in February:
9.5mph - Average wind speed in March:
9.5mph - Average wind speed in April:
9.4mph - Average wind speed in May:
7.6mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6.1mph - Average wind speed in August:
6mph - Average wind speed in September:
6.7mph - Average wind speed in October:
8.1mph - Average wind speed in November:
8.5mph - Average wind speed in December:
8.7mph
The windiest months (with the highest average wind speed) are February and March (9.5mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity
Smyrna, DE
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall
Smyrna, DE
- Average rainfall in January:
2.13" - Average rainfall in February:
2.64" - Average rainfall in March:
2.91" - Average rainfall in April:
2.64" - Average rainfall in May:
3.07" - Average rainfall in June:
3.19"
- Average rainfall in July:
3.62" - Average rainfall in August:
3.86" - Average rainfall in September:
2.32" - Average rainfall in October:
2.87" - Average rainfall in November:
2.28" - Average rainfall in December:
3.43"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (2.13").
Average rainfall days
Smyrna, DE
- Average rainfall days in January:
9.7 days - Average rainfall days in February:
10.3 days - Average rainfall days in March:
15.1 days - Average rainfall days in April:
15.3 days - Average rainfall days in May:
18.3 days - Average rainfall days in June:
17.4 days
- Average rainfall days in July:
19 days - Average rainfall days in August:
16.4 days - Average rainfall days in September:
14.3 days - Average rainfall days in October:
12.6 days - Average rainfall days in November:
9.3 days - Average rainfall days in December:
11.5 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (9.3 days).
Average snowfall
Smyrna, DE
The month with the highest snowfall is March (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Smyrna, DE
- Average snowfall days in January:
4.5 days - Average snowfall days in February:
4.1 days - Average snowfall days in March:
2.8 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 days - Average snowfall days in November:
0.3 days - Average snowfall days in December:
2.5 days
The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Smyrna, DE
- 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 18min - 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 12min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 30min
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 30min).
- Average sunshine in January:
5h and 18min - Average sunshine in February:
5h and 6min - Average sunshine in March:
6h and 42min - Average sunshine in April:
8h and 48min - Average sunshine in May:
8h and 54min - Average sunshine in June:
10h and 18min
- Average sunshine in July:
10h and 42min - Average sunshine in August:
10h and 30min - Average sunshine in September:
9h and 24min - Average sunshine in October:
5h and 42min - Average sunshine in November:
5h and 54min - Average sunshine in December:
5h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days
Smyrna, DE
- Average sunshine days in January:
17.2 days - Average sunshine days in February:
13.6 days - Average sunshine days in March:
13.4 days - Average sunshine days in April:
12.6 days - Average sunshine days in May:
10.3 days - Average sunshine days in June:
10.6 days
- Average sunshine days in July:
9.5 days - Average sunshine days in August:
11.3 days - Average sunshine days in September:
13.4 days - Average sunshine days in October:
16.3 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
16.8 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (9.5 days).
Average UV index
Smyrna, DE
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 and December (UV index 2).
Average cloud cover
Smyrna, DE
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility
Smyrna, DE
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).
