Climate and monthly weather forecastNewcastle, OK
Climate and monthly weather forecast
Weather in January
January, like December, is another chilly winter month in Newcastle, Oklahoma, with an average temperature ranging between min 32°F (0°C) and max 49.1°F (9.5°C). Newcastle notes the coldest temperatures in January, with a high average of 49.1°F (9.5°C) and a low of 32°F (0°C). Weather in January »Weather in February
February, the last month of the winter in Newcastle, is a cool month, with an average temperature fluctuating between 35.1°F (1.7°C) and 52°F (11.1°C). With the onset of February, a modest change to a fresh 52°F (11.1°C) from January's 49.1°F (9.5°C) is noted in high-temperature. Weather in February »Weather in March
The first month of the spring, March, is a refreshing month in Newcastle, Oklahoma, with an average temperature fluctuating between 44.8°F (7.1°C) and 63°F (17.2°C). Newcastle sees an increase in average high-temperatures during March, moving from a cool 52°F (11.1°C) in February to an enjoyable 63°F (17.2°C). Weather in March »Weather in April
April is an agreeable spring month in Newcastle, Oklahoma, with an average temperature fluctuating between 51.4°F (10.8°C) and 70.9°F (21.6°C). As Newcastle welcomes April, the average high-temperature displays a subtle shift, adjusting from a refreshing 63°F (17.2°C) in March to a pleasant 70.9°F (21.6°C). Weather in April »Weather in May
The last month of the spring, May, is a moderately hot month in Newcastle, Oklahoma, with an average temperature ranging between min 59.9°F (15.5°C) and max 78.1°F (25.6°C). Newcastle, Oklahoma, experiences a minor temperature shift with the start of May, with average high-temperatures moving from a pleasant 70.9°F (21.6°C) in April to a warm 78.1°F (25.6°C). Weather in May »Weather in June
The first month of the summer, June, is a hot month in Newcastle, Oklahoma, with an average temperature fluctuating between 88.5°F (31.4°C) and 70.3°F (21.3°C). June's arrival signals an increase in average high-temperatures, moving from May's warm 78.1°F (25.6°C) to a tropical 88.5°F (31.4°C). Weather in June »Weather in July
July, the same as June, in Newcastle, Oklahoma, is another tropical summer month, with an average temperature fluctuating between 93.6°F (34.2°C) and 73.2°F (22.9°C). Newcastle's warmest weather arrives in July, when temperatures average a high of 93.6°F (34.2°C) and a low of 73.2°F (22.9°C). The heat index for July is calculated to be a blisteringly hot 111.2°F (44°C). Weather in July »Weather in August
August, the last month of the summer in Newcastle, is also a hot month, with an average temperature fluctuating between 93.2°F (34°C) and 72°F (22.2°C). An average high-temperature of a still hot 93.2°F (34°C) marks August, exhibiting a close resemblance to the conditions in July. Weather in August »Weather in September
September, the first month of the autumn in Newcastle, is still a warm month, with an average temperature varying between 65.7°F (18.7°C) and 84.6°F (29.2°C). The arrival of September correlates with a minor temperature reduction, down from August's tropical 93.2°F (34°C) to a moderately hot 84.6°F (29.2°C). Weather in September »Weather in October
October, like September, is an agreeable autumn month in Newcastle, Oklahoma, with an average temperature fluctuating between 71.2°F (21.8°C) and 53.1°F (11.7°C). October indicates a shift in the average high-temperature, from September's warm 84.6°F (29.2°C) to a pleasant 71.2°F (21.8°C). Weather in October »Weather in November
The last month of the autumn, November, is another refreshing month in Newcastle, Oklahoma, with an average temperature varying between 42.4°F (5.8°C) and 60.1°F (15.6°C). The transition into November involves a decrease in the average high-temperature, falling from a pleasant 71.2°F (21.8°C) in October to a refreshing 60.1°F (15.6°C). Weather in November »Weather in December
December, the first month of the winter in Newcastle, is also a frosty month, with temperature in the range of an average low of 34.2°F (1.2°C) and an average high of 49.3°F (9.6°C). Newcastle's transition into December involves a shift in temperature, receding from a refreshing 60.1°F (15.6°C) in November to a chilly 49.3°F (9.6°C). Weather in December »Updated: Jul 22, 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
The coldest month is January, with an average high-temperature of 49.1°F (9.5°C) and an average low-temperature of 32°F (0°C).
Throughout the year, there are 119.9 rainfall days, and 24.09" (612mm) of precipitation is accumulated.
January through March, November and December are months with snowfall.
In Newcastle, during the entire year, snow falls for 5.9 days and aggregates up to 2.95" (75mm) of snow.
February and December are months with the least rain when the rain falls for 6.9 days and typically aggregates up to 0.98" (25mm) of rain.
February is the month with the most snowfall. Snow falls for 1.8 days and accumulates 1.1" (28mm) 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.
April through October are months without snowfall.
With an average relative humidity of 74%, May is the most humid month.
The month with the most rainfall is May, when the rain falls for 14.6 days and typically aggregates up to 3.82" (97mm) of precipitation.
The month with the longest days in Newcastle is June, with an average of 14h and 30min of daylight.
The months with the highest UV index are June through August, with an average maximum UV index of 7.
The warmest month is July, with an average high-temperature of 93.6°F (34.2°C) and an average low-temperature of 73.2°F (22.9°C).
The months with the most sunshine are July and August, with an average of 11.1h of sunshine.
The least humid month is August, with an average relative humidity of 59%.
December has the shortest days of the year, with an average of 9h and 48min of daylight.
With an average of 6.1h of sunshine, December has the least sunshine of the year.
With an average maximum UV index of 2, December is the month with the lowest UV index.
Average temperature
Newcastle, OK
The warmest month (with the highest average high temperature) is July (93.6°F).
The month with the lowest average high temperature is January (49.1°F).
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (32°F).
Average pressure
Newcastle, OK
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
29.9"Hg - Average pressure in May:
29.9"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"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 (29.87"Hg).
Average wind speed
Newcastle, OK
- Average wind speed in January:
10.9mph - Average wind speed in February:
11.4mph - Average wind speed in March:
11.9mph - Average wind speed in April:
12.2mph - Average wind speed in May:
10.7mph - Average wind speed in June:
10.1mph
- Average wind speed in July:
8.6mph - Average wind speed in August:
8.5mph - Average wind speed in September:
8.7mph - Average wind speed in October:
10.3mph - Average wind speed in November:
11.1mph - Average wind speed in December:
10.3mph
The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity
Newcastle, OK
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (59%).
Average rainfall
Newcastle, OK
- Average rainfall in January:
1.1" - Average rainfall in February:
0.98" - Average rainfall in March:
1.69" - Average rainfall in April:
2.6" - Average rainfall in May:
3.82" - Average rainfall in June:
2.17"
The wettest month (with the highest rainfall) is May (3.82").
The driest months (with the least rainfall) are February and December (0.98").
Average rainfall days
Newcastle, OK
- Average rainfall days in January:
4.6 days - Average rainfall days in February:
6.9 days - Average rainfall days in March:
10.9 days - Average rainfall days in April:
12.9 days - Average rainfall days in May:
14.6 days - Average rainfall days in June:
11 days
- Average rainfall days in July:
12.3 days - Average rainfall days in August:
11.9 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
10.4 days - Average rainfall days in November:
6.4 days - Average rainfall days in December:
5.5 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (4.6 days).
Average snowfall
Newcastle, OK
The month with the highest snowfall is February (1.1").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Newcastle, OK
- Average snowfall days in January:
1.4 days - Average snowfall days in February:
1.8 days - Average snowfall days in March:
0.6 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:
0.5 days - Average snowfall days in December:
1.4 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Newcastle, OK
- Average daylight in January:
10h and 6min - Average daylight in February:
10h and 54min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 30min
- Average daylight in July:
14h and 18min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 18min - Average daylight in December:
9h and 48min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January:
6h and 18min - Average sunshine in February:
7h and 30min - Average sunshine in March:
7h and 24min - Average sunshine in April:
8h and 36min - Average sunshine in May:
9h and 12min - Average sunshine in June:
11h and 0min
- Average sunshine in July:
11h and 6min - Average sunshine in August:
11h and 6min - Average sunshine in September:
8h and 36min - Average sunshine in October:
7h and 0min - Average sunshine in November:
6h and 18min - Average sunshine in December:
6h and 6min
The months with the most sunshine are July and August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days
Newcastle, OK
- Average sunshine days in January:
24.5 days - Average sunshine days in February:
18.8 days - Average sunshine days in March:
16.8 days - Average sunshine days in April:
14.9 days - Average sunshine days in May:
13.7 days - Average sunshine days in June:
17 days
- Average sunshine days in July:
17 days - Average sunshine days in August:
15.5 days - Average sunshine days in September:
14.2 days - Average sunshine days in October:
19.3 days - Average sunshine days in November:
21.8 days - Average sunshine days in December:
23.5 days
The month with the most sunshine days is January (24.5 days).
The month with the least sunshine days is May (13.7 days).
Average UV index
Newcastle, OK
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover
Newcastle, OK
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility
Newcastle, OK
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).
