Climate and monthly weather forecast
Guttenberg, IA

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The climate of Guttenberg

Guttenberg, Iowa in the United States falls within the Humid continental zone Dfa according to the Köppen climate classification. This zone is characterized by no dry season and hot summers. The geographical position sets the stage for distinct seasons, significant variations in temperatures, rainfall and snowfall.

Throughout the year, temperatures in Guttenberg fluctuates between a low of 11.3°F (-11.5°C) and reaches a high of 79.9°F (26.6°C). There's a noticeable change where the seasonal transition exhibits temperature shifts. From February’s 14.4°F (-9.8°C), it climbs to pleasant 54.9°F (12.7°C) by April, further to a high of 79.9°F (26.6°C) in July. Subsequently, the latter half of the year witnesses a decrease in temperatures, dropping to 30.4°F (-0.9°C) by the end of December.

The place experiences a sharp variance in humidity levels, with data indicating values ranging from 76% to a high of 88%. Rainfall records establish a varying pattern distributed over the year, peaking at 3.94" (100mm) in May. Furthermore, it experiences snowfall, particularly during the colder months, starting from December 3.94" (100mm) until February 4.8" (122mm), afterwards, it sharply reduces, reaching 1.26" (32mm) in April.

Daylight hours oscillate between 9.1 hours in December and extend up to 15.3 hours in June. Likewise, Guttenberg gets varied sunshine hours peaking at 9.9 hours in July and August and decreasing to a minimum of 3.6 hours during the winter month of January. The ultraviolet index soars to 6 in the sunny months of June and July, and then dips down to 1 during the darker months from November to January.

The best time to visit Guttenberg

The ideal visit would be dictated by personal preferences in weather and activities. However, considering aspects such as mild temperatures, reasonable rainfall and extended daylight hours, May till September emerge as favourable months. These months register temperatures from 54.9°F (12.7°C) to 72.5°F (22.5°C) and offer extended sunshine, between 8.3 to 9.9 hours, making outdoor activities immensely enjoyable.

The worst time to visit Guttenberg

From the perspective of harsh weather conditions, December through February might test visitor resilience. These months witness the lowest temperatures varying from 20.3°F (-6.5°C) to 30.4°F (-0.9°C). Additionally, the region encounters severe snowfall accompanied by shorter daylight hours. For those who are not inclined towards winter activities or cold weather, it's advisable to avoid these months.

Spring weather in Guttenberg

Guttenberg experiences a spring season marked by a significant upswing in temperatures, climbing from winter's lows to 37.9°F (3.3°C) in March, 48.7°F (9.3°C) in April, and 58.8°F (14.9°C) in May. Correspondingly, during this period, the city gets notable increments in the daylight hours, adding up to 14.7 hours by May's end. Rainfall increases from 1.81" (46mm) in March to its yearly high of 3.94" (100mm) in May.

Summer weather in Guttenberg

Summers in Guttenberg can turn warm, with temperatures moving within 66.7°F (19.3°C) to 79.9°F (26.6°C) from June to August. Humidity values generally stay within 81% to 83% through these months, rendering them relatively humid. Rainfall declines after its peak in May to 3.07" (78mm) in July, with daylight and sunshine hours at their peak.

Autumn weather in Guttenberg

Autumn brings a gradual decline in both temperatures and daylight hours. September starts at 72.5°F (22.5°C), sliding to 57.9°F (14.4°C) in October, and settling at 43.5°F (6.4°C) by November. Sunshine hours decrease as well from 9 hours in September down to 5.1 hours in November. Rainfall measures 2.72" (69mm) in September, tapering to 1.65" (42mm) by November.

Winter weather in Guttenberg

Winter in Guttenberg is cold with temperatures falling considerably from 43.5°F (6.4°C) in November to 30.4°F (-0.9°C) in December and 23.7°F (-4.6°C) in January. The snowfall heightens, escalating to 3.94" (100mm) in December. Sunshine hours reach their minimum, with 4 hours in December, slightly increasing to 4.6 hours in January. Similarly, daylight also reduces to a minimum of 9.1 hours in December.

Weather in January

Guttenberg, Iowa ushers in the new year with chilly temperatures, transitioning from the harsher conditions of December. The average high in January hovers around 23.7°F (-4.6°C), whilst the average low is roughly 11.3°F (-11.5°C). Weather in January »

Weather in February

Moving into February, Guttenberg experiences a slight improvement in temperatures relative to January. The higher average temperatures can be attributed to the slightly longer daylight hours. An interesting fact about February's weather is its dominant wind gust speed of 15.8mph (25.4km/h) which is higher than the average speed of January. Weather in February »

Weather in March

March typifies a warmer weather compared to the preceding winter months. An increase in daylight hours and a decrease in cloud cover contribute to the warming trend. Although the snowfall reduces significantly to 2.17" (55mm), rainfall steps in to maintain the number of wet days in March. Weather in March »

Weather in April

With the advent of April, spring makes a grand entrance in Guttenberg. Compared to snowy March, April sees a drastic decrease in snowfall, bottoms out at 1.26" (32mm). This month also experiences a sizeable jump in precipitation with 3.07" (78mm) of rain. Weather in April »

Weather in May

In May, Guttenberg experiences even warmer temperatures, amplified by an increase in the length of day. Humidity spikes to 81% and rainfall reaches its peak in May at 3.94" (100mm) which indicates the higher possibility of thunderstorms. Weather in May »

Weather in June

June is considered one of the hottest months in Guttenberg, with maximum average temperatures of 76.3°F (24.6°C). Average daylight hours in June reach up to 15.3 hours, the longest all year. Complementing the higher temperature, Guttenberg experiences an increase in humidity to 84%. Weather in June »

Weather in July

July records the highest average temperatures with 79.9°F (26.6°C). Guttenberg also witnesses the highest UV index score of 6 in July. With 15 hours of daylight, residents get ample time under the sun. However, the rainfall decreases slightly compared to its predecessor month, amounting to 3.07" (78mm). Weather in July »

Weather in August

August, in Guttenberg, is popular for its heat, matching that of July. Despite the lower average temperature of 78.4°F (25.8°C), the city experiences the same levels of sunshine as July, averaging 9.9 hours a day. However, rainfall drops to 1.81" (46mm), marking the lowest since April. Weather in August »

Weather in September

As September rolls in, Guttenberg begins to bid farewell to the hot summer months. It's a transition month, with temperatures decreasing but still remaining comfortably warm. The sunshine duration too shortens to about 9 hours a day. Weather in September »

Weather in October

October in Guttenberg is redolent of crisp autumn air. A significant drop in temperatures is noticed, leading to a shift from warm summer attire to coats and jackets. October also sees a substantial drop in rainfall with 2.64" (67mm). Weather in October »

Weather in November

November in Guttenberg is known for its cold weather and less sunshine hours. Although temperature drops are often, they do not match the extreme cold of winter. However, snowfall makes a steady climb to 1.89" (48mm), alerting the residents of the approaching winter months. Weather in November »

Weather in December

December brings the onset of winter in Guttenberg. It’s noticeably colder than November, with temperatures dipping considerably. Snowfall increases substantially to its yearly height of 3.94" (100mm). The duration of daylight decreases to 9.1 hours and the humidity scales up to 83%. Weather in December »
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

Guttenberg records the coldest temperatures in January, averaging a high of 23.7°F (-4.6°C) and a low of 11.3°F (-11.5°C).

What is the most humid month in Guttenberg?

January and February, with an average relative humidity of 88%, are most humid months.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 4.4 days and typically collects 1.18" (30mm) of precipitation.

How many days does it rain?

Throughout the year, there are 138.5 rainfall days, and 28.46" (723mm) of precipitation is accumulated.

When does it snow?

January through May, October through December are months with snowfall.

When does it snow the most in Guttenberg?

January is the month with the most snowfall. Snow falls for 12.5 days and accumulates 5.2" (132mm) of snow.

How many days does it snow?

Throughout the year, there are 48.6 snowfall days, and 19.57" (497mm) of snow is accumulated.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 3.6h of sunshine.

What are the months with the lowest UV index?

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index.

When is Daylight Saving Time (DST)?

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.

What is the rainiest month?

The month with the most rainfall is May, when the rain falls for 18 days and typically aggregates up to 3.94" (100mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

When are the longest days?

The month with the longest days is June, with an average of 15h and 18min of daylight.

What is the month with the highest UV index?

June and July, with an average maximum UV index of 6, are months with the highest UV index.

What are the warmest months?

July is the warmest month, exhibiting average temperatures of 79.9°F (26.6°C) at the peak and 62.4°F (16.9°C) at the base.

What is the month with the most sunshine?

July and August, with an average of 9.9h of sunshine, are months with the most sunshine.

What is the least humid month?

The least humid month is October, with an average relative humidity of 75%.

What is the month with the shortest days?

With an average of 9h and 6min of daylight, December has the shortest days of the year.

Average temperature
Guttenberg, IA

Average temperature - Guttenberg, IA

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (23.7°F).

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).

Average pressure
Guttenberg, IA

Average pressure - Guttenberg, IA

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed
Guttenberg, IA

Average wind speed - Guttenberg, IA

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity
Guttenberg, IA

Average humidity - Guttenberg, IA

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (75%).

Average rainfall
Guttenberg, IA

Average rainfall - Guttenberg, IA

The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is January (1.18").

Average rainfall days
Guttenberg, IA

Average rainfall days - Guttenberg, IA

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (4.4 days).

Average snowfall
Guttenberg, IA

Average snowfall - Guttenberg, IA

The month with the highest snowfall is January (5.2").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Guttenberg, IA

Average snowfall days - Guttenberg, IA

The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Guttenberg, IA

Average daylight / Average sunshine - Guttenberg, IA

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 6min).

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days
Guttenberg, IA

Average sunshine days - Guttenberg, IA

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.3 days).

Average UV index
Guttenberg, IA

Average UV index - Guttenberg, IA

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).

Average visibility
Guttenberg, IA

Average visibility - Guttenberg, IA

The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).

Guttenberg, Iowa, USA

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