Climate and monthly weather forecastSan Jacinto, IN
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in San Jacinto, Indiana, with an average temperature varying between 35.8°F (2.1°C) and 23.4°F (-4.8°C). January, with its high-temperature average of 35.8°F (2.1°C) and a low-temperature average of 23.4°F (-4.8°C), is the coldest month. Weather in January »Weather in February
February, the last month of the winter in San Jacinto, is another cold month, with an average temperature fluctuating between 26.6°F (-3°C) and 41°F (5°C). San Jacinto ushers in February with an average high-temperature of a still cold 41°F (5°C), showing a close resemblance to the previous month. Weather in February »Weather in March
The first month of the spring, March, is a cool month in San Jacinto, Indiana, with temperature in the range of an average high of 51.8°F (11°C) and an average low of 35.6°F (2°C). The shift into March is accompanied by a temperature increase, with the average high-temperature rising from a cold 41°F (5°C) in February to a cool 51.8°F (11°C). Weather in March »Weather in April
April is a comfortable spring month in San Jacinto, Indiana, with an average temperature ranging between max 63.3°F (17.4°C) and min 45.7°F (7.6°C). As March gives way to April, the average high-temperature displays an increase, moving from a fresh 51.8°F (11°C) to a refreshing 63.3°F (17.4°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in San Jacinto, Indiana, with an average temperature ranging between min 55.9°F (13.3°C) and max 73.2°F (22.9°C). As April transitions into May, a change in temperatures is observed, with average highs moving from an enjoyable 63.3°F (17.4°C) to an agreeable 73.2°F (22.9°C). Weather in May »Weather in June
June, the first month of the summer in San Jacinto, is a moderately hot month, with temperature in the range of an average low of 63°F (17.2°C) and an average high of 81.3°F (27.4°C). June's onset brings a minor rise in the average high-temperature, moving from an agreeable 73.2°F (22.9°C) in May to a moderately hot 81.3°F (27.4°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in San Jacinto, Indiana, with temperature in the range of an average high of 84.4°F (29.1°C) and an average low of 65.5°F (18.6°C). San Jacinto's temperatures tend to reach their peak averages in July, with a high of 84.4°F (29.1°C) and a low of 65.5°F (18.6°C). July's average heat index is calculated to be a very hot 95°F (35°C). Weather in July »Weather in August
August, the last month of the summer in San Jacinto, is another warm month, with an average temperature ranging between min 63.7°F (17.6°C) and max 83.5°F (28.6°C). The ushering in of August brings an average high-temperature of a still warm 83.5°F (28.6°C), closely mirroring the 84.4°F (29.1°C) of July. Weather in August »Weather in September
September, the first month of the autumn in San Jacinto, is still a warm month, with an average temperature varying between 77.5°F (25.3°C) and 58.3°F (14.6°C). The arrival of September is marked by a minor reduction in average high-temperature, sliding from 83.5°F (28.6°C) in August to a still warm 77.5°F (25.3°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in San Jacinto, Indiana, with an average temperature ranging between max 65.1°F (18.4°C) and min 47.1°F (8.4°C). The transition into October indicates a reduction in the average high-temperature, down to an enjoyable 65.1°F (18.4°C) from September's moderately hot 77.5°F (25.3°C). Weather in October »Weather in November
November, the last month of the autumn in San Jacinto, is also a fresh month, with an average temperature fluctuating between 51.3°F (10.7°C) and 36.5°F (2.5°C). San Jacinto's weather in November involves a decrease in the average high-temperature, moving down from October's refreshing 65.1°F (18.4°C) to a fresh 51.3°F (10.7°C). Weather in November »Weather in December
December, the first month of the winter in San Jacinto, is also an icy month, with an average temperature fluctuating between 41.4°F (5.2°C) and 30°F (-1.1°C). December brings a minor decrease, with the average high-temperature reducing from a cool 51.3°F (10.7°C) in November to an icy 41.4°F (5.2°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
San Jacinto, IN
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.8°F).
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure
San Jacinto, IN
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.13"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
San Jacinto, IN
- Average wind speed in January:
8.5mph - Average wind speed in February:
8.5mph - Average wind speed in March:
8.3mph - Average wind speed in April:
8.5mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.8mph - Average wind speed in October:
7.1mph - Average wind speed in November:
7.6mph - Average wind speed in December:
8mph
The windiest months (with the highest average wind speed) are January, February and April (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity
San Jacinto, IN
The months with the highest relative humidity are January, February and December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall
San Jacinto, IN
- Average rainfall in January:
2.13" - Average rainfall in February:
2.36" - Average rainfall in March:
2.56" - Average rainfall in April:
3.35" - Average rainfall in May:
3.46" - Average rainfall in June:
2.64"
- Average rainfall in July:
2.72" - Average rainfall in August:
2.01" - Average rainfall in September:
1.61" - Average rainfall in October:
2.24" - Average rainfall in November:
2.24" - Average rainfall in December:
2.24"
The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days
San Jacinto, IN
- Average rainfall days in January:
9 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
13 days - Average rainfall days in April:
14.9 days - Average rainfall days in May:
18.8 days - Average rainfall days in June:
15.9 days
- Average rainfall days in July:
16.2 days - Average rainfall days in August:
13.8 days - Average rainfall days in September:
12.3 days - Average rainfall days in October:
10.4 days - Average rainfall days in November:
9.2 days - Average rainfall days in December:
10.9 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (9 days).
Average snowfall
San Jacinto, IN
The month with the highest snowfall is March (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
San Jacinto, IN
- Average snowfall days in January:
8.3 days - Average snowfall days in February:
8.1 days - Average snowfall days in March:
4.6 days - Average snowfall days in April:
0.6 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:
0.2 days - Average snowfall days in November:
2.8 days - Average snowfall days in December:
7.1 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
San Jacinto, IN
- 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 54min
- 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 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
5h and 12min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 18min - Average sunshine in May:
8h and 42min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
9h and 30min - Average sunshine in September:
8h and 18min - Average sunshine in October:
6h and 48min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days
San Jacinto, IN
- Average sunshine days in January:
15.3 days - Average sunshine days in February:
12.9 days - Average sunshine days in March:
12.8 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
9.9 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
12 days - Average sunshine days in August:
14.4 days - Average sunshine days in September:
15.3 days - Average sunshine days in October:
18.2 days - Average sunshine days in November:
17.7 days - Average sunshine days in December:
14.2 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is May (9.9 days).
Average UV index
San Jacinto, IN
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
San Jacinto, IN
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility
San Jacinto, IN
The months with the highest visibility are January, March, April, June, October and November (6mi).
The months with the lowest visibility are February, May, July, August, September and December (5mi).





