Sunday was partly cloudy, milder and dry. High temperatures reached the mid 40s by mid-afternoon after early AM lows in the upper mid 20s.

The maximum temperature was 46.4° at 1519.

The minimum temperature was 27.5° at 0726.

Dew point temperatures ranged from a high of 31° @ 1651 down to a low of 18° @ 2319.

Relative humidity values ranged from a high of 86% @ 0332 down to a low of 46% @ 2319.

Barometric pressure ranged from a high of 30.20″ @ 0000 down to a low of 29.97″ @ 1437.

Sunday had no precipitation. My January monthly total is 3.54″ and is also my year-to-date total for 2019.

My year-to-date snowfall is on hold unfortunately at 12.7″ with the seasonal total at 14.8″.

My current online data (except for rainfall/snowfall – use the cocorahs link shown below for that dataset) is showing regularly on Weather Underground. My data is posted there every 5 minutes. My ID is KMDROCKV200 and my station is called “Gardens of Traville.” Data is online, normally just about in real-time now as it is being updated on a 5 minute interval. The web address for my data on weather underground is:
https://www.wunderground.com/personal-weather-station/dashboard?ID=KMDROCKV200

I contribute my precipitation data daily to CoCoRaHS as Rockville 2.8 WNW, Station ID MD-MG-115 on https://www.cocorahs.org/

Please remember that Weather Underground precipitation data reflects what is recorded automatically through the tipping bucket VP2 gauge, just as it does on WxLink 2.0. The tipping bucket has been producing erratic values at times so should not be used save for general precipitation timing. For example during our big snowstorm earlier this month the snow didn’t melt at all during the storm, and only started to record precipitation amounts a few days later when the sun and above freezing temperatures started to melt the snow.

I actually use the data I post to CoCoRaHS from my 4 inch CoCoRaHS gauge I read manually as my “official” precipitation total each day. I also use a snow stake outside my balcony window to get an idea on how much snow has fallen (while it is snowing) and how much snow is on the ground.

Monday should be sunny and seasonably cool, with highs in the upper mid 30s and lows in the 20s.

Tuesday clouds come in with the much anticipated strong cold front coming through, mild in the morning with low 40s for highs and rain, changing to light snow in the afternoon with temps falling through the 30s and 20s to the mid teens by midnight observation. One to two inches of snow is anticipated to fall as of now. Clearing out in the evening.

On Wednesday and Thursday, very cold temps/wind chills will be definitely in evidence. Wind chills may reach down to below the zero mark, air temps should only max out in the 20s with lows in the low-mid teens, perhaps dipping into the single digits on Thursday morning. Sunny skies will at least warm the heart at times when the wind slacks off like it will occasionally.

Friday should moderate some with highs around 30° , lows in the upper teens with cloudy skies and a chance of snow showers. Saturday should moderate some more, with highs in the upper 30s and lows in the mid 20s under partly cloudy skies.

Midnight Sunday night found the temperature at 36.6°, relative humidity 47%, pressure rising at 30.07″ and dew point at 18.3° under clearing skies.

Currently at 0814 the temperature is 26.9° under partly to mostly cloudy skies, relative humidity at 55%,
barometric pressure rising at 30.13″, and the dew point at 13°.

Good morning from the Walrus on this variably cloudy, colder Monday.