Climate and monthly weather forecastNew Plymouth, ID
Climate and monthly weather forecast
Weather in January
January, like December, in New Plymouth, Idaho, is another cold winter month, with an average temperature varying between 36.1°F (2.3°C) and 23.5°F (-4.7°C). January records an average high-temperature of a still wintry 36.1°F (2.3°C), indicating a minor variation from the preceding month. Weather in January »Weather in February
The last month of the winter, February, is another cold month in New Plymouth, Idaho, with an average temperature varying between 41.7°F (5.4°C) and 29.1°F (-1.6°C). A slight uplift of average high-temperatures is noted in February, with temperatures adjusting from an icy 36.1°F (2.3°C) in January to a still cold 41.7°F (5.4°C). Weather in February »Weather in March
The first month of the spring, March, is a fresh month in New Plymouth, Idaho, with temperature in the range of an average high of 52.2°F (11.2°C) and an average low of 36.1°F (2.3°C). As March begins, there is an increase in the average high-temperature, moving from a wintry 41.7°F (5.4°C) in February to a cool 52.2°F (11.2°C). Weather in March »Weather in April
April is an enjoyable spring month in New Plymouth, Idaho, with an average temperature fluctuating between 60.8°F (16°C) and 39.7°F (4.3°C). April brings a slight elevation in the average high-temperature, transitioning from March's cool 52.2°F (11.2°C) to a comfortable 60.8°F (16°C). Weather in April »Weather in May
May, the last month of the spring in New Plymouth, is an agreeable month, with an average temperature varying between 46.6°F (8.1°C) and 70.7°F (21.5°C). As April gives way to May, the average high-temperature displays an increase, moving from an enjoyable 60.8°F (16°C) to an agreeable 70.7°F (21.5°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in New Plymouth, Idaho, with an average temperature varying between 53.2°F (11.8°C) and 79.2°F (26.2°C). In June, the average high-temperature marginally rises from an agreeable 70.7°F (21.5°C) in May to a warm 79.2°F (26.2°C). Weather in June »Weather in July
July is a hot summer month in New Plymouth, Idaho, with an average temperature fluctuating between 91.6°F (33.1°C) and 60.8°F (16°C). New Plymouth's July weather, marked by an average high temperature of 91.6°F (33.1°C) and an average low temperature of 60.8°F (16°C), is the warmest in the year. Weather in July »Weather in August
The last month of the summer, August, is another tropical month in New Plymouth, Idaho, with an average temperature varying between 90.5°F (32.5°C) and 61.3°F (16.3°C). August's weather displays an average high-temperature of a still tropical 90.5°F (32.5°C), slightly varied from July's 91.6°F (33.1°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in New Plymouth, Idaho, with an average temperature varying between 54.3°F (12.4°C) and 79.7°F (26.5°C). With the beginning of September, the average high-temperature shows a decrease, transitioning from a hot 90.5°F (32.5°C) in August to a moderately hot 79.7°F (26.5°C). Weather in September »Weather in October
October, like September, in New Plymouth, Idaho, is another refreshing autumn month, with an average temperature ranging between max 62.1°F (16.7°C) and min 43.3°F (6.3°C). With the onset of October, New Plymouth experiences a noticeable temperature shift, with the average high-temperature receding from a moderately hot 79.7°F (26.5°C) in September to an enjoyable 62.1°F (16.7°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in New Plymouth, Idaho, with an average temperature fluctuating between 32.5°F (0.3°C) and 47.5°F (8.6°C). November signals a clear decrease in the average high-temperature, dropping from October's refreshing 62.1°F (16.7°C) to a frosty 47.5°F (8.6°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in New Plymouth, Idaho, with an average temperature fluctuating between 23.4°F (-4.8°C) and 35.8°F (2.1°C). December, noted for its average high-temperature of 35.8°F (2.1°C) and an average low-temperature of 23.4°F (-4.8°C), is considered the coldest month. Weather in December »Updated: Aug 25, 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 is the most humid month, with an average relative humidity of 82%.
Throughout the year, there are 95.4 rainfall days, and 10.2" (259mm) of precipitation is accumulated.
January through April, November and December are months with snowfall.
Throughout the year, there are 22.5 snowfall days, and 12.01" (305mm) of snow is accumulated.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
The month with the most rainfall in New Plymouth is March, when the rain falls for 15.3 days and typically aggregates up to 1.61" (41mm) of precipitation.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.
In New Plymouth, snow does not fall in May through October.
The month with the longest days is June, with an average of 15h and 24min of daylight.
New Plymouth's temperature records reveal July as the warmest month, marked by average highs of 91.6°F (33.1°C) and lows of 60.8°F (16°C).
July is the month with the least rainfall. Rain falls for 3.3 days and accumulates 0.12" (3mm) of precipitation.
July has the most sunshine of the year, with an average of 12.1h of sunshine.
With an average maximum UV index of 7, July is the month with the highest UV index.
The least humid month is August, with an average relative humidity of 30%.
Temperature records mark December as the coldest month, with highs averaging 35.8°F (2.1°C) and lows at 23.4°F (-4.8°C).
The month with the most snowfall is December, when snow falls for 7.5 days and typically aggregates up to 4.8" (122mm) of snow.
The month with the shortest days is December, with an average of 9h and 0min of daylight.
The month with the least sunshine is December, with an average of 5.3h of sunshine.
Average temperature
New Plymouth, ID
The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is December (35.8°F).
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is December (23.4°F).
Average pressure
New Plymouth, ID
- Average pressure in January:
30.24"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.95"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.21"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed
New Plymouth, ID
- Average wind speed in January:
3.9mph - Average wind speed in February:
5mph - Average wind speed in March:
6mph - Average wind speed in April:
6.3mph - Average wind speed in May:
5.7mph - Average wind speed in June:
5.5mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
4.9mph - Average wind speed in September:
4.8mph - Average wind speed in October:
4.7mph - Average wind speed in November:
4.7mph - Average wind speed in December:
4.3mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is January (3.9mph).
Average humidity
New Plymouth, ID
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (30%).
Average rainfall
New Plymouth, ID
- Average rainfall in January:
1.46" - Average rainfall in February:
1.22" - Average rainfall in March:
1.61" - Average rainfall in April:
0.87" - Average rainfall in May:
0.83" - Average rainfall in June:
0.59"
- Average rainfall in July:
0.12" - Average rainfall in August:
0.16" - Average rainfall in September:
0.31" - Average rainfall in October:
0.67" - Average rainfall in November:
0.79" - Average rainfall in December:
1.57"
The wettest month (with the highest rainfall) is March (1.61").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days
New Plymouth, ID
- Average rainfall days in January:
10.2 days - Average rainfall days in February:
9.7 days - Average rainfall days in March:
15.3 days - Average rainfall days in April:
10.8 days - Average rainfall days in May:
7.8 days - Average rainfall days in June:
6.9 days
- Average rainfall days in July:
3.3 days - Average rainfall days in August:
3.2 days - Average rainfall days in September:
4.4 days - Average rainfall days in October:
7 days - Average rainfall days in November:
7.7 days - Average rainfall days in December:
9.1 days
The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is August (3.2 days).
Average snowfall
New Plymouth, ID
The month with the highest snowfall is December (4.8").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
New Plymouth, ID
- Average snowfall days in January:
5.9 days - Average snowfall days in February:
5.8 days - Average snowfall days in March:
1.5 days - Average snowfall days in April:
0.1 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:
1.6 days - Average snowfall days in December:
7.5 days
The month with the highest number of snowfall days is December (7.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
New Plymouth, ID
- Average daylight in January:
9h and 18min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 48min - Average daylight in June:
15h and 24min
- Average daylight in July:
15h and 6min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
5h and 30min - Average sunshine in February:
7h and 36min - Average sunshine in March:
8h and 0min - Average sunshine in April:
9h and 30min - Average sunshine in May:
11h and 12min - Average sunshine in June:
11h and 30min
- Average sunshine in July:
12h and 6min - Average sunshine in August:
11h and 18min - Average sunshine in September:
9h and 30min - Average sunshine in October:
8h and 6min - Average sunshine in November:
6h and 30min - Average sunshine in December:
5h and 18min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days
New Plymouth, ID
- Average sunshine days in January:
17.2 days - Average sunshine days in February:
14.5 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
17.8 days - Average sunshine days in May:
20.7 days - Average sunshine days in June:
21.2 days
- Average sunshine days in July:
25.6 days - Average sunshine days in August:
24.8 days - Average sunshine days in September:
24.7 days - Average sunshine days in October:
22.9 days - Average sunshine days in November:
19.6 days - Average sunshine days in December:
17.6 days
The month with the most sunshine days is July (25.6 days).
The month with the least sunshine days is March (13.8 days).
Average UV index
New Plymouth, ID
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
New Plymouth, ID
The month with the most cloud cover is December (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 8).
Average visibility
New Plymouth, ID
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
