Climate and monthly weather forecastWatertown, WI
Climate and monthly weather forecast
The climate of Watertown
Located in the United States, more specifically Wisconsin, Watertown experiences a Dfa Köppen climate classification - a humid continental climate with no dry season and hot summers. Over the course of a year, monthly average temperatures range between a low of 11.7°F (-11.3°C) in the colder months to a high of 78.6°F (25.9°C) during the warmer months. With a certain level of predictability, temperatures ascend from the start of the year, peak in July, and then gradually descend into the colder months again.Humidity levels show minor fluctuations throughout the year with the least humid month being April (76%) and the most humid months being January and February (89% and 88% respectively). Watertown also experiences varying wind speeds from as low as 6.5mph (10.5km/h) in August up to 10mph (16.1km/h) in April. It's clear then that weather conditions in Watertown are influenced by a mix of factors making the city's climate distinct.
Rainfall patterns may also impact the overall weather in Watertown. Rainfall inches peak in July at 1.54" (39mm) and taper off to as low as 0.47" (12mm) in February. Number of rainfall days increases from the start of the year, peaks around May and then decreases again. This implies that the wettest part of the year is around mid-year. During a major part of the year, the city endures a certain level of snowfall with February being the maximum at 1.61" (41mm). It tends to be absent from June to September, before picking up again in October.
The best time to visit Watertown
The most favorable time to visit Watertown, Wisconsin would be in the late spring and summer months from May to August. During this period, the weather is pleasantly warm with average high temperatures ranging from 65.8°F (18.8°C) to 78.6°F (25.9°C). Rainfall is moderate with 1.3" (33mm) to 1.54" (39mm) monthly average. Outdoor activities can be planned without much hindrance from rain as the number of rainfall days are between 12.5 days to 13.8 days. The brighter daylight hours, averaging between 14.7 to 15 hours certainly enhances the overall experience during these months.The worst time to visit Watertown
Generally, the colder months from November to February could be considered unfavorable for visits. During these months, average temperatures fluctuate between a frigid 11.7°F (-11.3°C) to 30.2°F (-1°C). Snowfall is also a common occurrence and can dramatically impact outdoor activities and travel. Daylight hours are short with only about 9.4 hours in January and February due to the winter solstice. Freezing wind speeds also make these months quite uncomfortable for outdoor activities.Spring weather in Watertown
Spring in Watertown, which starts in March, tends to be mild. Average high temperatures increase from 41.4°F (5.2°C) in March to a comfortable 65.8°F (18.8°C) in May. Low temperatures follow a similar upward trend from 27°F (-2.8°C) to 47.8°F (8.8°C). Rainfall sees an uptick in spring, cumulating to the highest of 1.3" (33mm) in May. From March to May, the number of daylight hours jumps from 12 hours to 14.7 hours, contributing to increasing UV index levels from 2 to 5.Summer weather in Watertown
Following the mild spring comes the more heated summer months. In this warm period, high temperatures range from 74.3°F (23.5°C) to 78.6°F (25.9°C) while low temperatures fall into a snug 57°F (13.9°C) to 61.3°F (16.3°C) range. Despite the heat, rainfall is at its peak in summer, with July having the heaviest rainfall of 1.54" (39mm) spread over 13.8 days on average. The number of daylight hours also maximizes at this point with July boasting on average 15 hours of daylight.Autumn weather in Watertown
Autumn weather in Watertown, seen from September to November, can be categorized by falling temperatures, with average highs decreasing from a warm 70.9°F (21.6°C) in September down to a much cooler 42.6°F (5.9°C) in November. Low temperatures follow a similar pattern, falling from 52°F (11.1°C) in September to 30°F (-1.1°C) in November. Rainfall during this period is moderate, fluctuating between 0.91" (23mm) and 1.14" (29mm). Daylight hours similarly see a decrease from 12.5 hours in September to 9.7 hours by November, as the year heads into winter.Winter weather in Watertown
Winter in Watertown, from December to February, is known for sub-freezing temperatures and snowy conditions. Average high temperatures during this period are quite low, ranging from 23.7°F (-4.6°C) to 30.2°F (-1°C), while average low temperatures can drop to a stark 11.7°F (-11.3°C) in January. Snowfall is also very frequent during these months with the highest snowfall of 1.61" (41mm) seen in December. Daylight hours are the shortest during this period averaging to a meagre 9.4 hours in December and January. Low UV index of 1 along with overcast conditions are typical in winters, making it the harshest season in Watertown.Weather in January
Despite setting the tone of the year with frosty temperatures, January in Watertown, Wisconsin offers a blend of weather patterns. Light snowfall is a common feature during this period. The arrival of the year is marked with a consistent dip in temperature recording a low of 11.7°F (-11.3°C) and a high of 23.7°F (-4.6°C). Weather in January »Weather in February
With the progression of the year, February carries forward January's cold, with a slight enhancement in both, temperature and daylight hours. Snowfall is a frequent spectacle in February, providing a winter wonderland aesthetic to Watertown. Weather in February »Weather in March
March heralds the spring season in Watertown, Wisconsin. It signals the end of the harshest winter months and inaugurates a thawing period. The town witnesses temperatures ranging from 27°F (-2.8°C) to 41.4°F (5.2°C), showcasing the first signs of warmth for the year. Weather in March »Weather in April
Continuing the journey into spring, April in Watertown exhibits a greater transition in weather. Rainfall tends to replace snowfall as the primary form of precipitation. Balmy days make an appearance with temperatures scaling to a high of 53.2°F (11.8°C) from a minimum of 36.9°F (2.7°C). Weather in April »Weather in May
May raises the curtain for the summer season in Watertown by extending the warmth of April. Outdoor activities become more possible with the weather growing increasingly pleasant. A leap in temperature is evident as the range shifts from 47.8°F (8.8°C) to 65.8°F (18.8°C). Weather in May »Weather in June
June introduces the authentic summer experience in Watertown with warmer temperatures and extended sunshine hours. Activities around bodies of water become popular with locals and tourists alike. Temperatures flirt with heat, fluctuating between 57°F (13.9°C) and 74.3°F (23.5°C). Weather in June »Weather in July
As the pinnacle of summer, July in Watertown boasts the warmest weather of the year. Outdoor activities continue to remain popular with locals who often seek refuge in shaded areas during peak sunshine time. The month witnesses temperatures reaching the highest for the year, as they drift from 61.3°F (16.3°C) to 78.6°F (25.9°C). Weather in July »Weather in August
August carries forward the heat from July but with a slight decline in intensity. As the height of summer begins to wane, there's a mild drop in temperatures and daylight hours. A slight decrease in temperature becomes noticeable as readings range from 59.7°F (15.4°C) to 77.5°F (25.3°C). Weather in August »Weather in September
September ushers in the fall season in Watertown, Wisconsin. It's a transition period that blends the lingering warmth of summer with the fresh, crisp air of the incoming autumn. Noticeably cooler weather steps in, with temperatures situated between 52°F (11.1°C) and 70.9°F (21.6°C). Weather in September »Weather in October
October fully immerses Watertown in the heart of fall. The cityscape is punctuated by vibrant autumnal colors, and cooler weather becomes more prevalent. Notably, temperatures during October vary from 41.7°F (5.4°C) to 57.6°F (14.2°C). Weather in October »Weather in November
November in Watertown marks the doorstep to winter. A stark contrast appears in the weather as the autumn leaves give way to sporadic snow flurries. The temperature spectrum falls to colder numbers fluctuating between 30°F (-1.1°C) and 42.6°F (5.9°C). Weather in November »Weather in December
Closing the year, December in Watertown, Wisconsin welcomes the winter season in full swing. The chill of winter takes over the autumn's tail end and snow driven landscapes become a common sight. The lowering temperatures, averaging out between 19.9°F (-6.7°C) and 30.2°F (-1°C), indicate the arrival of the peak of winter. Weather in December »Updated: Aug 26, 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
Watertown reaches its average lowest temperatures in January, measuring 23.7°F (-4.6°C) at the peak and 11.7°F (-11.3°C) at the lowest.
The most humid month is January, with an average relative humidity of 89%.
Throughout the year, there are 113.9 rainfall days, and 11.57" (294mm) of precipitation is accumulated.
January through May, October through December are months with snowfall.
January is the month with the most snowfall. Snow falls for 12.1 days and accumulates 1.61" (41mm) of snow.
In Watertown, during the entire year, snow falls for 45 days and aggregates up to 5.51" (140mm) of snow.
January has the least sunshine of the year, with an average of 3.4h of sunshine.
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index.
The months with the least rainfall in Watertown are February and December Rain falls for 3 days and accumulates 0.47" (12mm) of rain.
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 is the least humid month in Watertown, with an average relative humidity of 76%.
The months with the highest UV index are May through August, with an average maximum UV index of 5.
June through September are months without snowfall in Watertown.
The month with the longest days is June, with an average of 15h and 18min of daylight.
Temperature readings reach their annual highs in July, averaging 78.6°F (25.9°C) and a minimum average of 61.3°F (16.3°C).
The month with the most rainfall is July, when the rain falls for 13.8 days and typically aggregates up to 1.54" (39mm) of precipitation.
With an average of 9.9h of sunshine, July has the most sunshine of the year.
The month with the shortest days is December, with an average of 9h and 0min of daylight.
Average temperature
Watertown, WI
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (23.7°F).
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure
Watertown, WI
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.09"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Watertown, WI
- Average wind speed in January:
9.6mph - Average wind speed in February:
9.7mph - Average wind speed in March:
9.5mph - Average wind speed in April:
10mph - Average wind speed in May:
8.6mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.4mph - Average wind speed in October:
8.8mph - Average wind speed in November:
9.3mph - Average wind speed in December:
9.2mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity
Watertown, WI
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall
Watertown, WI
- Average rainfall in January:
0.55" - Average rainfall in February:
0.47" - Average rainfall in March:
0.63" - Average rainfall in April:
1.14" - Average rainfall in May:
1.3" - Average rainfall in June:
1.42"
- Average rainfall in July:
1.54" - Average rainfall in August:
1.38" - Average rainfall in September:
0.91" - Average rainfall in October:
1.14" - Average rainfall in November:
0.63" - Average rainfall in December:
0.47"
The wettest month (with the highest rainfall) is July (1.54").
The driest months (with the least rainfall) are February and December (0.47").
Average rainfall days
Watertown, WI
- Average rainfall days in January:
3.1 days - Average rainfall days in February:
3 days - Average rainfall days in March:
8.4 days - Average rainfall days in April:
12.5 days - Average rainfall days in May:
14.4 days - Average rainfall days in June:
12.5 days
- Average rainfall days in July:
13.8 days - Average rainfall days in August:
13.8 days - Average rainfall days in September:
9.8 days - Average rainfall days in October:
9.9 days - Average rainfall days in November:
7 days - Average rainfall days in December:
5.7 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is February (3 days).
Average snowfall
Watertown, WI
- Average snowfall in January:
1.61" - Average snowfall in February:
1.18" - Average snowfall in March:
0.35" - Average snowfall in April:
0.24" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is January (1.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Watertown, WI
- Average snowfall days in January:
12.1 days - Average snowfall days in February:
10.3 days - Average snowfall days in March:
5 days - Average snowfall days in April:
2.3 days - Average snowfall days in May:
0.2 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:
0.8 days - Average snowfall days in November:
4.5 days - Average snowfall days in December:
9.8 days
The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Watertown, WI
- Average daylight in January:
9h and 24min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 42min - Average daylight in June:
15h and 18min
- Average daylight in July:
15h and 0min - 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 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
3h and 24min - Average sunshine in February:
3h and 36min - Average sunshine in March:
5h and 48min - Average sunshine in April:
7h and 18min - Average sunshine in May:
8h and 36min - Average sunshine in June:
9h and 24min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
9h and 48min - Average sunshine in September:
8h and 36min - Average sunshine in October:
5h and 18min - Average sunshine in November:
4h and 54min - Average sunshine in December:
3h and 48min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days
Watertown, WI
- Average sunshine days in January:
16.9 days - Average sunshine days in February:
15.8 days - Average sunshine days in March:
18.3 days - Average sunshine days in April:
15.1 days - Average sunshine days in May:
14.2 days - Average sunshine days in June:
14.1 days
- Average sunshine days in July:
12.4 days - Average sunshine days in August:
13.4 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
17.6 days - Average sunshine days in November:
18.5 days - Average sunshine days in December:
18.4 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (12.4 days).
Average UV index
Watertown, WI
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover
Watertown, WI
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July, August and September (Cloud cover 34).
Average visibility
Watertown, WI
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
