When is the best time to go to Merrillville

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The chart above shows the best time of year to visit Merrillville, United States. These are based on an analysis of weather averages such as temperature, rainfall and number of hours of sunshine. These ratings are based solely on the climate and do not take into account other factors such as accommodation prices and how busy it is likely to be.

Average temperatures in Merrillville

Merrillville weather by month

Please note our recommendations for when to visit Merrillville are based solely on the weather and do not take into accounts accommodation prices, how busy it will be and what events are on.

January

Merrillville January weather averages
Temp Rain Sunshine Day length
-1°C 44mm 4.8hrs 10.6hrs

The climate in Merrillville during January can be summarized as cold and reasonably dry.

Based on weather alone, this is probably a time of year to avoid going to Merrillville for your holidays. The weather is often not a good and not conducive to spending time outdoors.

January is in the winter in Merrillville and is typically the coldest month of the year. Daytime maximum temperatures average around a freezing -1°C (30°F), whilst at night -11°C (13°F) is normal.

On average January is the driest month of the year in Merrillville with around 44mm 1.7 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.

On the flip side this corresponds to an average of 4.8 hours of sunshine per day.

Merrillville weather in January »

February

Merrillville February weather averages
Temp Rain Sunshine Day length
1°C 38mm 5.5hrs 11.6hrs

February in Merrillville is generally reasonably dry with the temperature being cold.

Based on weather alone, this is probably a time of year to avoid going to Merrillville for your holidays. The weather is often not a good and not conducive to spending time outdoors.

February is in the winter in Merrillville and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a freezing 1°C (34°F), whilst at night -9°C (17°F) is normal.

On average February is the 2nd driest month of the year in Merrillville with around 38mm 1.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.5 hours of sunshine per day.

Merrillville weather in February »

March

Merrillville March weather averages
Temp Rain Sunshine Day length
7°C 65mm 6.5hrs 12.8hrs

The weather in March in Merrillville is characteristically cool and reasonably dry.

Based on weather alone, this is probably a time of year to avoid going to Merrillville for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.

March is in the spring in Merrillville and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cold 8°C (46°F), whilst at night -2°C (28°F) is normal.

On average March is the 3rd driest month of the year in Merrillville with around 65mm 2.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.5 hours of sunshine per day.

Merrillville weather in March »

April

Merrillville April weather averages
Temp Rain Sunshine Day length
14°C 98mm 7.9hrs 14.3hrs

Merrillville's weather in April is typically cool and a little damp in nature.

Although outside the main holiday season, there is still plenty of fairly acceptable weather around this time of year. This makes it an okay time to visit Merrillville.

April is in the spring in Merrillville and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 15°C (60°F), whilst at night 3°C (38°F) is normal.

On average April is the 4th driest month of the year in Merrillville with around 98mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.9 hours of sunshine per day.

Merrillville weather in April »

May

Merrillville May weather averages
Temp Rain Sunshine Day length
20°C 93mm 9.7hrs 15.5hrs

May is a a little damp month in Merrillville and the temperature is generally mild.

It is perhaps a good month to visit Merrillville, with some extremely good weather at this time of year.

May is in the spring in Merrillville and is typically the 5th coldest month of the year. Daytime maximum temperatures average around 22°C (71°F), whilst at night 9°C (47°F) is normal.

On average May is the 5th driest month of the year in Merrillville with around 93mm 3.7 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.7 hours of sunshine per day.

Merrillville weather in May »

June

Merrillville June weather averages
Temp Rain Sunshine Day length
25°C 106mm 11.1hrs 10.6hrs

The climate in Merrillville during June can be summarized as warm and damp.

It is perhaps a good month to visit Merrillville, with some surprisingly good weather at this time of year.

June is in the summer in Merrillville and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a comfortable 27°C (81°F), whilst at night 14°C (57°F) is normal.

On average June is the 6th driest month of the year in Merrillville with around 106mm 4.2 inches of rain making it a damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 11.1 hours of sunshine per day.

Merrillville weather in June »

July

Merrillville July weather averages
Temp Rain Sunshine Day length
26°C 99mm 11hrs 11.6hrs

July in Merrillville is generally a little damp with the temperature being warm.

It is perhaps the perfect month to visit Merrillville, with some surprisingly good weather at this time of year.

July is in the summer in Merrillville and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a muggy 29°C (84°F), whilst at night 17°C (62°F) is normal.

On average July is the 6th wettest month of the year in Merrillville with around 99mm 3.9 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 11 hours of sunshine per day.

Merrillville weather in July »

August

Merrillville August weather averages
Temp Rain Sunshine Day length
25°C 90mm 9.9hrs 12.8hrs

The weather in August in Merrillville is characteristically warm, humid and a little damp.

It is perhaps the perfect month to visit Merrillville, with some very good weather at this time of year.

August is in the summer in Merrillville and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a muggy 28°C (82°F), whilst at night 15°C (60°F) is normal.

On average August is the 5th wettest month of the year in Merrillville with around 90mm 3.5 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.9 hours of sunshine per day.

Merrillville weather in August »

September

Merrillville September weather averages
Temp Rain Sunshine Day length
22°C 92mm 8.3hrs 14.3hrs

Merrillville's weather in September is typically mild and a little damp in nature.

It is perhaps the perfect month to visit Merrillville, with some particularly good weather at this time of year.

September is in the fall / autumn in Merrillville and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 24°C (75°F), whilst at night 11°C (53°F) is normal.

On average September is the 4th wettest month of the year in Merrillville with around 92mm 3.6 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.3 hours of sunshine per day.

Merrillville weather in September »

October

Merrillville October weather averages
Temp Rain Sunshine Day length
16°C 72mm 6.8hrs 15.5hrs

October is a reasonably dry month in Merrillville and the temperature is generally mild.

Although outside the main holiday season, there is still plenty of quite acceptable weather around this time of year. This makes it an okay time to visit Merrillville.

October is in the fall / autumn in Merrillville and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a cool 17°C (63°F), whilst at night 5°C (41°F) is normal.

On average October is the 3rd wettest month of the year in Merrillville with around 72mm 2.8 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.8 hours of sunshine per day.

Merrillville weather in October »

November

Merrillville November weather averages
Temp Rain Sunshine Day length
8°C 77mm 4.2hrs 10.6hrs

November in Merrillville is generally reasonably dry with the temperature being cool.

Based on weather alone, this is probably a time of year to avoid going to Merrillville for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.

November is in the fall / autumn in Merrillville and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a cold 9°C (49°F), whilst at night -0°C (32°F) is normal.

On average November is the 2nd wettest month of the year in Merrillville with around 77mm 3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.

On the flip side this corresponds to an average of 4.2 hours of sunshine per day.

Merrillville weather in November »

December

Merrillville December weather averages
Temp Rain Sunshine Day length
2°C 62mm 3.7hrs 11.6hrs

December in Merrillville is generally reasonably dry with the temperature being cold.

Based on weather alone, this is probably a time of year to avoid going to Merrillville for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.

December is in the winter in Merrillville and is typically the warmest month of the year. Daytime maximum temperatures average around a freezing 2°C (35°F), whilst at night -7°C (20°F) is normal.

On average December is the wettest month of the year in Merrillville with around 62mm 2.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.

On the flip side this corresponds to an average of 3.7 hours of sunshine per day.

Merrillville weather in December »

Other monthly averages

UV index Best time to go?

Merrillville weather stats

Merrillville weather statistics
Hottest month: July 28.8°C 83.8°F
Driest month: February 38mm 1.5ins
Sunniest month: July 11hrs
Coldest month: January -1.3°C 29.7°F
Wettest month: June 106mm 4.2ins
Warmest sea: August 21.8°C 71.2°F
Map showing location of Merrillville (41.48281, -87.33281) Merrillville map pin © Google

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