Jackson - Jackson Hole
Photo: Alan Smith

JACKSON, Wyo. — The spring weather roller coaster is in full swing across Wyoming. Over the past week, we experienced our warmest temperatures of the year so far with a high of 61 at the town of Jackson weather station last Thursday. However, that all came to a crash over the weekend as a strong cold front arrived, ushering in winter-like temperatures on Sunday.

The high temperature in Jackson only hit 32 degrees on Sunday, which is more than 20 degrees colder than average. The weather station at the top of the Jackson Hole tram recorded a bone-chilling high temperature of 5 degrees above zero on Sunday and a low temperature of 5 degrees below zero on Monday morning.

Believe it or not, the low temperature of -5 is the coldest temperature ever recorded at the top of the tram during the month of April. However, this comes with a big caveat that temperature records at this station beyond April 1 only date back to 2002. Still, the cold temperatures are impressive for this time of year. In the town of Jackson, the low temperature fell to 7 degrees on Monday morning, but this is well above the record low of -4 that was set in 1933.

Most of the previous 7 days were dry across the region, although the Rendezvous Bowl Plot at Jackson Hole Mountain Resort managed to pick up 12″ of snow over the past week. Settled snow depths in the Teton Mountains decreased slightly across all elevations over the past week, and have likely already reached their peak for the season. However, snow depths remain well above average across the board for mid-April.

 

The upcoming week is going to be a chilly one for Jackson Hole with temperatures running well below average through Thursday. However, most of the week is looking dry other than Wednesday and perhaps Saturday night/Sunday.

An unseasonably cold airmass for mid-April remains in place on Monday, and highs will struggle to reach 30 in the valley. For perspective, our average high at this time of year is in the mid-50s. Mostly sunny skies early will give way to scattered clouds on Monday afternoon as a weak disturbance arrives from the northwest. This will result in isolated snow flurries that won’t amount to much of anything. Skies will clear out again on Monday night with lows falling to near 10 in the valley.

Conditions will be dry through the daytime hours on Tuesday with a mix of sun and clouds expected. Temperatures will warm up into the upper 30s following another cold start in the morning.

A storm system will then approach from the northwest on Tuesday night, bringing periods of snow showers from late Tuesday night through Wednesday afternoon with snow levels extending down to the valley floor. Snow amounts during this time will range from 3-8 inches in the Tetons, while the valley could pick up anywhere from a dusting to an inch on Wednesday morning.

Here is a look at the 5-day snow forecast for the Teton Mountains.

Conditions will dry out again on Thursday and Friday with mostly sunny skies both days. Temperatures will remain well below average on Thursday before a warming trend finally ensues on Friday.

Here is a look at the 5-day temperature forecast for the Jackson Hole Valley and the Teton Mountains.

Over the weekend, we’ll see a more noticeable warm-up with temperatures likely getting above 50 in the valley. Long-range models are indicating a weak disturbance could bring some light rain/snow showers at some point over the weekend, but it doesn’t look like a big deal at this time.

Alan Smith, Meteorologist

Buckrail Meteorologist Alan Smith

Alan is a professional meteorologist who holds a degree from MSU Denver and writes weather forecasts for Buckrail. He has worked in the private sector of weather forecasting since 2013 and has lived in Jackson since 2015. Alan specializes in mountain weather and forecasts for ski areas across North America.