Climate and monthly weather forecastWaterloo, IN
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Waterloo, Indiana, with temperature in the range of an average high of 29.8°F (-1.2°C) and an average low of 18.5°F (-7.5°C). January is the coldest month, exhibiting average temperatures of 29.8°F (-1.2°C) at the peak and 18.5°F (-7.5°C) at the base. Weather in January »Weather in February
The last month of the winter, February, is a cold month in Waterloo, Indiana, with an average temperature ranging between max 33.6°F (0.9°C) and min 21°F (-6.1°C). February notes an average high-temperature of an icy 33.6°F (0.9°C), subtly differing from January's 29.8°F (-1.2°C). Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Waterloo, Indiana, with an average temperature varying between 30.6°F (-0.8°C) and 45.5°F (7.5°C). The rise of average high-temperatures is seen in March, with an increase from an icy 33.6°F (0.9°C) in February to a chilly 45.5°F (7.5°C). Weather in March »Weather in April
April is a mild spring month in Waterloo, Indiana, with temperature in the range of an average low of 40.1°F (4.5°C) and an average high of 56.8°F (13.8°C). In Waterloo, stepping into April brings a temperature increase, moving up from March's chilly 45.5°F (7.5°C) to a moderate 56.8°F (13.8°C). Weather in April »Weather in May
May, the last month of the spring in Waterloo, is a pleasant month, with an average temperature ranging between max 68.9°F (20.5°C) and min 52.2°F (11.2°C). The arrival of May sees a shift in the average high-temperature, moving from a moderate 56.8°F (13.8°C) in April to a pleasant 68.9°F (20.5°C). Weather in May »Weather in June
June, the first month of the summer in Waterloo, is a moderately hot month, with an average temperature ranging between max 77°F (25°C) and min 60.1°F (15.6°C). The start of June signals a slight increase in the average high-temperature, moving from a pleasant 68.9°F (20.5°C) in May to a moderately hot 77°F (25°C). Weather in June »Weather in July
July, like June, in Waterloo, Indiana, is another warm summer month, with an average temperature varying between 80.1°F (26.7°C) and 62.8°F (17.1°C). Waterloo witnesses the warmest weather in July, with temperatures averaging a high of 80.1°F (26.7°C) and a low of 62.8°F (17.1°C). Weather in July »Weather in August
August, the last month of the summer in Waterloo, is another warm month, with an average temperature varying between 78.4°F (25.8°C) and 61°F (16.1°C). Waterloo experiences an average high-temperature of a still moderately hot 78.4°F (25.8°C) in August, subtly different from July's 80.1°F (26.7°C). Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Waterloo, Indiana, with temperature in the range of an average low of 55.2°F (12.9°C) and an average high of 72.7°F (22.6°C). The commencement of September indicates a gentle shift in the average high-temperature, receding from August's moderately hot 78.4°F (25.8°C) to a pleasant 72.7°F (22.6°C). Weather in September »Weather in October
October, like September, is a moderate autumn month in Waterloo, Indiana, with an average temperature varying between 60.3°F (15.7°C) and 45°F (7.2°C). October's onset corresponds with a shift in the average high-temperature, moving from a pleasant 72.7°F (22.6°C) in September to a refreshing 60.3°F (15.7°C). Weather in October »Weather in November
November, the last month of the autumn in Waterloo, is another chilly month, with temperature in the range of an average high of 46.4°F (8°C) and an average low of 33.4°F (0.8°C). In Waterloo, the average high-temperature in November drops from a refreshing 60.3°F (15.7°C) in October to a chilly 46.4°F (8°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Waterloo, Indiana, with an average temperature ranging between max 35.8°F (2.1°C) and min 26.1°F (-3.3°C). With December's arrival, Waterloo's weather changes as the average high-temperature falls from a chilly 46.4°F (8°C) in November to a wintry 35.8°F (2.1°C). Weather in December »Updated: Feb 12, 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 tends to be the coldest month in Waterloo, with temperatures averaging a daily high of 29.8°F (-1.2°C) and a low of 18.5°F (-7.5°C).
January and February, with an average relative humidity of 85%, are most humid months in Waterloo.
January and December are months with the least rain in Waterloo when the rain falls for 6.8 days and typically aggregates up to 1.34" (34mm) of rain.
Throughout the year, in Waterloo, Indiana, there are 157.1 rainfall days, and 24.09" (612mm) of precipitation is accumulated.
January through May, October through December are months with snowfall.
Throughout the year, in Waterloo, there are 54.1 snowfall days, and 13.43" (341mm) of snow is accumulated.
January has the least sunshine of the year, with an average of 3.2h of sunshine.
The month with the most snowfall is February, when snow falls for 13 days and typically aggregates up to 3.27" (83mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Waterloo, Indiana, 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.
The month with the most rainfall is May, when the rain falls for 18.3 days and typically aggregates up to 3.11" (79mm) of precipitation.
In Waterloo, snow does not fall in June through September.
With an average of 15h and 6min of daylight, June has the longest days of the year in Waterloo.
June is the month with the highest UV index in Waterloo, Indiana, with an average maximum UV index of 6.
Waterloo's temperatures peak on average in July, reaching 80.1°F (26.7°C) at their highest and 62.8°F (17.1°C) at their lowest.
With an average of 10.1h of sunshine, July has the most sunshine of the year.
The least humid month in Waterloo is October, with an average relative humidity of 76%.
December has the shortest days of the year, with an average of 9h and 12min of daylight.
With an average maximum UV index of 1, December is the month with the lowest UV index in Waterloo.
Average temperature
Waterloo, IN
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (29.8°F).
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure
Waterloo, IN
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.04"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Waterloo, IN
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.1mph - Average wind speed in March:
9.8mph - Average wind speed in April:
10.3mph - Average wind speed in May:
8.6mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6.3mph - Average wind speed in September:
7.1mph - Average wind speed in October:
8.8mph - Average wind speed in November:
9.5mph - Average wind speed in December:
9.7mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity
Waterloo, IN
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (76%).
Average rainfall
Waterloo, IN
- Average rainfall in January:
1.34" - Average rainfall in February:
1.38" - Average rainfall in March:
1.93" - Average rainfall in April:
3.03" - Average rainfall in May:
3.11" - Average rainfall in June:
2.52"
- Average rainfall in July:
2.56" - Average rainfall in August:
2.09" - Average rainfall in September:
1.54" - Average rainfall in October:
1.69" - Average rainfall in November:
1.57" - Average rainfall in December:
1.34"
The wettest month (with the highest rainfall) is May (3.11").
The driest months (with the least rainfall) are January and December (1.34").
Average rainfall days
Waterloo, IN
- Average rainfall days in January:
6.8 days - Average rainfall days in February:
6.9 days - Average rainfall days in March:
12 days - Average rainfall days in April:
16 days - Average rainfall days in May:
18.3 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
15.8 days - Average rainfall days in September:
14.1 days - Average rainfall days in October:
13.8 days - Average rainfall days in November:
10.5 days - Average rainfall days in December:
9.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (6.8 days).
Average snowfall
Waterloo, IN
- Average snowfall in January:
3.19" - Average snowfall in February:
3.27" - Average snowfall in March:
1.46" - Average snowfall in April:
0.98" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Waterloo, IN
- Average snowfall days in January:
15.1 days - Average snowfall days in February:
13 days - Average snowfall days in March:
6.8 days - Average snowfall days in April:
1.8 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:
0.5 days - Average snowfall days in November:
5.3 days - Average snowfall days in December:
11.5 days
The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Waterloo, IN
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 12min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
3h and 12min - Average sunshine in February:
4h and 12min - Average sunshine in March:
5h and 42min - Average sunshine in April:
6h and 54min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
9h and 30min - Average sunshine in September:
7h and 54min - Average sunshine in October:
6h and 0min - Average sunshine in November:
4h and 54min - Average sunshine in December:
3h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days
Waterloo, IN
- Average sunshine days in January:
10.8 days - Average sunshine days in February:
9.9 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
10.8 days - Average sunshine days in May:
10.4 days - Average sunshine days in June:
10.7 days
- Average sunshine days in July:
11.1 days - Average sunshine days in August:
11.7 days - Average sunshine days in September:
14.4 days - Average sunshine days in October:
14.7 days - Average sunshine days in November:
15.5 days - Average sunshine days in December:
12.2 days
The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is February (9.9 days).
Average UV index
Waterloo, IN
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Waterloo, IN
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility
Waterloo, IN
The months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, August and September (5mi).
