It is a compilation of the entire climate stats for the City of Jackson, WY for the 12 months 2020, the stats that turn into a part of the story of our native local weather. Knowledge introduced comes from the from the Jackson Local weather Station, positioned on the north finish of city. As you will notice, 2020 went down as one other chilly and snowy 12 months right here in Jackson.

The creator snowboarding deep powder within the Tetons, February 2020. Photograph Chris More durable.

Following this abstract is a glance again on the most important climate occasions that occurred in 2020, what was uncommon or exterior what we contemplate “regular” climate.

Excessive Temperatures 2020

The typical excessive temperature for the whole 12 months in 2020 was just below 52-degrees. That’s two levels colder than the long-term historic common annual excessive temperature of 54-degrees.

In 2019, the common excessive temperature was solely 49-degrees. That was the coldest common annual excessive temperature, ever.

January, March and August of 2020 had been the one months of the 12 months that noticed common excessive temperatures above regular. Each different month checked in with beneath regular excessive temperatures.

The most popular temperature recorded on the Jackson Local weather Station in 2020 was 88-degrees on August 17th. There have been no days that formally reached 90-degrees on the town.

Low Temperatures 2020

The typical low temperature for the whole 12 months in 2020 was 23-degrees. That’s exactly what the long-term common annual low temperature is for Jackson. In that respect, 2020 was completely regular.

January, March, Could, June and August 2020 had been all simply above the common for month-to-month low temperatures. February 2020 was nearly seven levels colder than common; November was three levels colder than common and December was round 5 levels colder than common. The opposite months of 2020 had been very near the common month-to-month low temperatures.

The coldest day of the 12 months again in 2019 was 25-degrees beneath zero on January 1st. In 2020, the coldest day of the 12 months was additionally 25-degrees beneath zero, but it surely took till February 20th, 2020 to achieve that very same temperature.

Additionally of word was the coldest temperature ever recorded within the month of October, which occurred in 2020, when it dropped to 9-degrees beneath zero on October 26th. That beat the outdated October low temperature document that was set the earlier 12 months, when it dropped to 6-degrees beneath zero on October 30th, 2019.

Imply Temperature 2019

In case you take the common of all of the month-to-month excessive temperatures and all of the month-to-month low temperatures for the 12 months, you generate what is named the annual imply temperature. That is the perfect gauge of the general temperature for the whole 12 months.

The annual imply temperature for Jackson in 2020 was 37.5-degrees. That tied for the eighth coldest 12 months on document

In 2019, the annual imply temperature was 35.4-degrees. That was chilly sufficient to qualify because the coldest annual imply temperature on document in Jackson.

The coldest 12 months on document in Jackson previous to 2019 was again in 1944, which had a imply temperature of 35.5 levels.

Consider, to be within the competitors for the coldest or warmest 12 months ever, you want 12 months of full climate knowledge. Out of the final 97 years, relationship again to 1923, there have been 36 years with too many lacking days or months of knowledge to have the ability to calculate an correct annual imply temperature. The 12 months 2019 was the coldest out of the 61 years with full knowledge.

For trivia’s sake, the most popular annual imply temperature in Jackson’s local weather document was 47.5 levels, method again in 1933.

Precipitation and Snow

After a current run of 4 years in a row with above regular annual precipitation, from 2016 to 2019, the City of Jackson skilled a drier than regular 12 months in 2020, however not by a lot. Complete precipitation in Jackson in 2020 was 15.22 inches, in comparison with a long-term common of 15.83 inches.

Complete snowfall within the 12 months 2020 was a unique story, we’re presently on a five-year run with above common annual snowfall, and 2020 was the most important of all of them.

For the calendar 12 months 2020, which truly accounts for elements of two completely different winter seasons, Jackson acquired 121 inches of snowfall. In 2019 we had over 111 inches. The typical annual snowfall within the City of Jackson is 77 inches.

I may solely discover three different years when the annual snowfall was better than 121 inches in Jackson, the most important of these years was in 1967, with 155 inches. The opposite two had been in 1971 with 130 inches and 1973 with 123 inches. Once more, these are amongst years which have full data.


The climate in Jackson, WY for 2020 might be summed up as merely as this: it was colder and far snowier than regular, together with near regular precipitation.

All the things was uncommon in 2020, even the Climate

The pandemic created uncommon circumstances that affected many points of our lives in 2020, the one factor it didn’t have an effect on was the climate. Climate may be uncommon all by itself.

Right here, I’ll revisit Jackson’s climate from 2020 and give attention to the extra uncommon occasions we had, on this most uncommon 12 months, season by season.

Winter 2020

January 2020 began out with a bang, when 32 inches of snow fell within the first two weeks of the 12 months, within the City of Jackson. That was large, contemplating the common snowfall for the month of January is 19 inches.

Rendezvous Bowl on the Jackson Gap Mountain Resort totaled up probably the most snowfall ever recorded within the first half of January. A complete of 121 inches of snow was measured there between January 1st and January 15th, 2020. That’s 10 ft of contemporary powder in two weeks.

The typical snowfall for the month of January in Rendezvous Bowl is 86 inches. January 2020’s complete snowfall ended up being practically twice that, with 169 inches, establishing a brand new January snowfall document. The outdated document was 150 inches, set in January 1998. January 2020 was additionally the third snowiest month ever recorded at JHMR.

Chris Bellino on 25-Brief, January 2020. Photograph Jim Woodmencey

Spring 2020

Simply as winter was waning the coronavirus was waxing, we acquired an enormous dump of snow. Between the morning of March 14th and the morning of March 15th, 2020 the City of Jackson acquired 12 inches of snow, a document for a one-day snowfall complete in mid-March.

That very same day, the mountains acquired 23 inches of snow in 24 hours. That’s additionally the day the ski areas closed for the season.

As all of us hunkered down in April, temperatures remained colder than regular. Jackson broke one other document with a excessive temperature of solely 28-degrees on April 13th, 2020. The low temperature that day was an unusually chilly 6-degrees. It was additionally snowier than regular throughout April 2020, on the town and the mountains.

On the Rendezvous Bowl Climate Station (elevation 9,580-feet), on the Jackson Gap Mountain Resort, 74 inches of snowfall was recorded within the month of April 2020. Common snowfall there in April is listed as 33 inches.

Summer time 2020

We began to dry out in Could 2020. Precipitation this previous Could was solely about one-third of the long-term common, 0.63 inches vs. 1.80 inches. June had extra showers, however nonetheless checked in with slightly below common precipitation, 1.55 inches vs. 1.63 inches.

Then, in July and August it received actually dry, with just a little over half an inch of precipitation in July and fewer than 1 / 4 inch in August. Correspondingly, there was additionally a noticeable lack of thunderstorms right here in July and August 2020.

Temperatures had been a bit at odds through the Summer time of 2020, with cooler than common day by day excessive temperatures, however barely hotter than common in a single day low temperatures. As a matter of reality, we went 91 days in a row with out dropping beneath the freezing mark, between June 1st and August 30th. That’s distinctive for Jackson.

Fall 2020

Over Labor Day Weekend the climate modified from heat and dry, with a excessive of 87-degrees September fifth, to chilly and snowy, with a excessive of solely 43-degrees on September eighth, 2020. That established a brand new document chilly excessive temperature for that date.

Jackson additionally acquired one inch of snow on September eighth, 2020. That’s the earliest in September that an inch of snow has been recorded on the town. Previous to that, the earliest date for an inch of snow was September 17th, in 1944.

October 2020 additionally started comparatively heat, then turned brutally chilly through the closing week of the month. On the morning of October 26th, 2020, the low temperature on the Jackson Local weather Station dropped to 9-degrees beneath zero.

That established a brand new document chilly temperature for the month of October. The outdated low temperature document for October, of minus 6-degrees, was from one 12 months earlier, on October 30th, 2019.

October 26th, 2020 additionally established a brand new document chilly excessive temperature for the month of October, of solely 18-degrees. This was the primary time in Jackson’s recorded climate historical past {that a} excessive temperature in October was within the teenagers.

November 2020 had its ups and downs temperature-wise, however as with October 2020, it checked in colder than common. November was additionally snowier than common on the town.

In a single 24-hour interval from 9:00 a.m. on November 13th to 9:00 a.m. on November 14th, the Jackson Local weather Station reported 7 inches of latest snowfall. That a lot snow in a single day through the first two weeks of November may be very uncommon.

To date, December 2020 appears to be like like it’ll end up barely cooler than regular general, even with these few days of unusually heat temperatures across the Solstice.

Cam Fitzpatrick on Opening Day December 2020. Photograph John Bowers.

Adieu to 2020

I attempted to hit as a lot of this previous 12 months’s climate highlights as I may, though there are most likely extra that you simply would possibly recall. For now, as most of us would most likely love to do, let’s put 2020 in our rear-view mirror. Hopefully, 2021 might be rather less uncommon for us, weatherwise and in any other case.

Put up by meteorologist Jim Woodmencey.

A few of the above initially appeared within the Mountain Climate column within the Jackson Gap Information & Information

By 24H

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