Climate and monthly weather forecastMilton, DE
Climate and monthly weather forecast
The climate of Milton
Milton, Delaware, USA is situated within the Köppen climate classification Cfa zone, characterized as 'Humid subtropical, no dry season'. The climatological parameters appear consistent with this classification. Milton experiences significant seasonal variation over the course of the year, though maintains a generally temperate and humid climate.Over the yearly transition, temperatures move from a low point in January, with average highs at around 41°F (5°C) and lows near 30.6°F (-0.8°C), to a peak in July marking the highest average temperature at 82.4°F (28°C) and a warm 71.4°F (21.9°C) at night. This indicates a range of 42.4°F (5.8°C) in high temperatures and a 40.8°F (4.9°C) shift in lows across the year.
In terms of precipitation, the city experiences rainfall more or less throughout the year with monthly average rates ranging from 0.63" (16mm) to 1.38" (35mm). The highest rainfall is typically observed in July and August, whereas the dryest month is ordinarily in September with 0.63" (16mm). Snow is rare in Milton but can occur, typically in January and November with an average of 0.75" (19mm) and 0.12" (3mm) respectively.
Wind speeds also demonstrate some variation throughout the year. The windiest period runs from January to March, with average speeds from 10.8mph (17.4km/h) to 10.7mph (17.2km/h), while the calmest months tend to be July and August, with speeds falling to around 7.2mph (11.6km/h) and 7.1mph (11.4km/h) respectively.
Interestingly, there appears to be a significant change in both daylight hours and UV index values, with longer days and higher UV index numbers recorded in summer months.
The best time to visit Milton
With consideration of travelers who prefer warm weather, the best time to visit Milton is typically from late May to early September. This period marks the city's warmest period, with peak temperatures in July, averaging at 82.4°F (28°C) during the day, and 71.4°F (21.9°C) during the night. Humidity levels peak around this time, too, which could add to the perceived temperature. However, sunlight is more abundant during these summer months, with an increase in daylight hours and UV index values.The worst time to visit Milton
Travelers who dislike cold weather should avoid visiting Milton between December and February when temperatures drop to their lowest. January is especially cold with temperatures down to an average 30.6°F (-0.8°C) at night, and even the day time highs linger around the cold 41°F (5°C) region. Wind speeds are rather high during this period, making the cold weather feel even more biting. Additionally, it is also at this time that the city experiences the more infrequent snowfall, which could lead to travel disruptions.Spring weather in Milton
Spring ushers in gradually warmer weather in Milton running from an average high of 49.6°F (9.8°C) in March up to 68.5°F (20.3°C) in May. Corresponding lows range from 37.9°F (3.3°C) in March up to 57.6°F (14.2°C) by May. Along with the rising temperatures, March experiences the highest number of rainfall days at an average of 12.3, though this decreases to 12.9 days by May. Daylight hours also increase during spring from 12 hours in March to 14.3 hours in May.Summer weather in Milton
Milton experiences its warmest conditions during the summer period from June to August with average highs ranging from 77.5°F (25.3°C) to 82.4°F (28°C). Corresponding nighttime temperatures take on a delightfully warm character within the range of 66.2°F (19°C) to 71.4°F (21.9°C). The city also sees its highest rainfall during this period between 1.1" (28mm) and 1.38" (35mm). A point of interest is the increase in UV index values from 6 in June up to 6 in August, implying a need for sun protection.Autumn weather in Milton
In Autumn, temperatures undergo a gradual drop from a toasty 75.7°F (24.3°C) in September to a more modest 54.9°F (12.7°C) by November. Night temperatures correspondingly dip from 65.3°F (18.5°C) down to 44.1°F (6.7°C). Rainfall during this period starts at 0.63" (16mm) in September and rises to 0.91" (23mm) by November. Daylight hours steadily decrease from 12.4 hours in September to 10.1 hours in November.Winter weather in Milton
Winter brings much colder temperatures to Milton with average highs between 47.1°F (8.4°C) to 41°F (5°C) in December and January respectively. Corresponding lows span between 37.8°F (3.2°C) in December to a chilly 30.6°F (-0.8°C) in January. The city also rarely witnesses snowfall, occuring mostly in January with an average of 0.75" (19mm). Notably, daylight hours are shortest during the winter, dropping to a yearly low of 9.5 hours in December.Weather in January
January in Milton, Delaware experiences the lowest sunlight duration of the year with daylight hours pegged at 9.8h. A blanket of cloud scattering at 41% cloaks the city most of the time causing limited visibility. The icy footprints from December are still visible with occasional snowfall under a backdrop of dropping temperatures. Weather in January »Weather in February
February presents a gradual shift from the deep freeze of January. The city experiences a minute rise in temperature, heralding the slow arrival of spring. Snowfall becomes a rare occurrence and daylight hours extend further. The increase in sunshine duration to 10.8h hints at the daylight-saving changes just around the corner. Weather in February »Weather in March
March in Milton carries the promises of spring, thus bringing unpredictable weather conditions. The city moves away from the cold grip with a noticeable rise in temperatures. The daylight duration extends to 12h, paving way for increased outdoor activities and signaling the arrival of spring. Weather in March »Weather in April
The exhilaration of spring being in full swing is palpable in Milton during April. The city becomes more colourful with flora coming into bloom under 13.2h of daily daylight. Temperature spikes up, painting the town with a warm hue during the day while nights remain comfortably cool. Weather in April »Weather in May
May experiences the second highest level of rainfall in Milton, Delaware at 1.02" (26mm), bringing considerable moisture to the city. This month commends itself as a junction of two seasons with the mercury pushing temperatures higher, hinting at the arrival of summer. Weather in May »Weather in June
June turns the corner from spring to summer, pushing the maximum temperatures up to 77.5°F (25.3°C). The city brims with the brilliance of summer under 14.9h of daylight, the longest of the year. Relative humidity stays at 79%, enriching the morning dew drops on the blossoming flora. Weather in June »Weather in July
The summer peak in July transforms Milton into a heat island with the highest average temperature of the year at 82.4°F (28°C). The month remains seemingly uniform in terms of humidity, holding steady at 79%. With 14.6h of daylight, the city has noon reaching almost the zenith. Weather in July »Weather in August
August in Milton continues the summer's sizzle albeit with a slight dip in temperature. The frequency of rainfall is at its maximum, recording 13.1 days while maintaining high humidity levels. The long summer days slowly start to fold into shorter daylight hours with 13.6h on the clock. Weather in August »Weather in September
The arrival of September signals the transition from summer to fall in Milton, Delaware, bringing a marked shift in weather patterns. The cooling trend begins under a canopy of Fall colors in the city. The majority of precipitation occurs in liquid form as the month records a small amount of rainfall at 0.63" (16mm), the least throughout the year. Weather in September »Weather in October
October wears its autumn colors proudly, with shorter days and longer, cooler nights in Milton. Despite the slight chill, the city remains lively under 11.2h of daylight, illuminated under the fall foliage. The relative humidity dips to 76%, providing a respite from the summer mugginess. Weather in October »Weather in November
November in Milton sees a dramatic change with signs of winter starting to show. The decrease in temperatures casts a cold spell over the city. The luminary duration further reduces to 10.1h while the deposition of the morning dew intensifies due to elevated humidity levels. Weather in November »Weather in December
December ushers in the winter season in full swing, with temperatures dipping to 37.8°F (3.2°C). Milton experiences a cold snap with the city marooned under a winter's chill. The year wraps up with shorter days, Christmas cheer and blustery winds. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Milton, DE
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (41°F).
The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure
Milton, 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:
30"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:
30.04"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
Milton, DE
- Average wind speed in January:
10.8mph - Average wind speed in February:
10.8mph - Average wind speed in March:
10.7mph - Average wind speed in April:
10.6mph - Average wind speed in May:
9mph - Average wind speed in June:
8.2mph
- Average wind speed in July:
7.2mph - Average wind speed in August:
7.1mph - Average wind speed in September:
8.5mph - Average wind speed in October:
9.8mph - Average wind speed in November:
10.1mph - Average wind speed in December:
10.2mph
The windiest months (with the highest average wind speed) are January and February (10.8mph).
The calmest month (with the lowest average wind speed) is August (7.1mph).
Average humidity
Milton, DE
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall
Milton, DE
- Average rainfall in January:
0.71" - Average rainfall in February:
0.75" - Average rainfall in March:
0.87" - Average rainfall in April:
0.71" - Average rainfall in May:
1.02" - Average rainfall in June:
1.1"
- Average rainfall in July:
1.34" - Average rainfall in August:
1.38" - Average rainfall in September:
0.63" - Average rainfall in October:
1.1" - Average rainfall in November:
0.91" - Average rainfall in December:
0.83"
The wettest month (with the highest rainfall) is August (1.38").
The driest month (with the least rainfall) is September (0.63").
Average rainfall days
Milton, DE
- Average rainfall days in January:
7.3 days - Average rainfall days in February:
7.6 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
10.6 days - Average rainfall days in May:
12.9 days - Average rainfall days in June:
11.3 days
- Average rainfall days in July:
13.6 days - Average rainfall days in August:
13.1 days - Average rainfall days in September:
10.8 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
6.7 days - Average rainfall days in December:
9.2 days
The month with the highest number of rainy days is July (13.6 days).
The month with the least rainy days is November (6.7 days).
Average snowfall
Milton, DE
The month with the highest snowfall is January (0.75").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days
Milton, DE
- Average snowfall days in January:
3.8 days - Average snowfall days in February:
2.2 days - Average snowfall days in March:
2 days - Average snowfall days in April:
0.2 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 days - Average snowfall days in November:
0.3 days - Average snowfall days in December:
2.1 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Milton, DE
- 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:
5h and 30min - Average sunshine in February:
5h and 6min - Average sunshine in March:
6h and 48min - Average sunshine in April:
9h and 0min - Average sunshine in May:
9h and 18min - Average sunshine in June:
10h and 36min
- Average sunshine in July:
11h and 0min - Average sunshine in August:
10h and 36min - Average sunshine in September:
9h and 30min - Average sunshine in October:
5h and 48min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 18min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days
Milton, DE
- Average sunshine days in January:
20.6 days - Average sunshine days in February:
18.3 days - Average sunshine days in March:
17.2 days - Average sunshine days in April:
16.9 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
16.1 days
- Average sunshine days in July:
13.3 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
16.3 days - Average sunshine days in October:
18.9 days - Average sunshine days in November:
21.2 days - Average sunshine days in December:
19.7 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (13.3 days).
Average UV index
Milton, 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
Milton, DE
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility
Milton, 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).





