Friday started out very early cold and clear but temps warmed overnight along with increasing clouds and moisture. Light rain started in mid-morning and lasted occasionally through the mid-afternoon, then broke till another period in the evening, with fog, at times dense, forming with the rain. Temps started out just below the freezing mark in the very early AM but warmed most of the day to around the 40 mark by mid evening. Dew points started out in the low 20s at the start of the day but fell rose most of the day to the upper 30s by mid-evening with the light rain and fog.

The maximum temperature was 40.1 degrees at 2026.

The minimum temperature was 31.6 degrees at 0105.

The dew point temperatures ranged from a low of 22 degrees @ 0000 up to a high of 39 degrees @ 2015.

The relative humidity values ranged from a low of 67% @ 0000 up to a high of 96% @ 2025.

The barometric pressure ranged from a high of 30.58 inches @ 0000 down to a low of 29.82 inches @ 2355.

The highest daily peak wind gust recorded across the street on the roof of the new USG building was 10 MPH at 0400 from the E.

There was 0.24 inches of precipitation on Friday. My December monthly total precipitation is now 1.74 inches.

There was no snow on Friday. My seasonal total snowfall is 0.3 inches. The year-to-date precipitation total is now 44.85 inches.

Saturday continued with clouds, light rain, and fog at times. Temps continued to rise, from the upper 30s at midnight up to the mid 40s in the mid-afternoon.  Barometric pressure bottomed out at 29.35 inches at 1200, a fall of 1.44 inches in only about 50 hours since the 12/12 high record of 30.79 inches. Dew points were highest in the mid-afternoon (mid 40s) and dropped to the mid 30s just before midnight for the lowest value of the day.

The maximum temperature was 45.9 degrees at 1628.

The minimum temperature was 39.3 degrees at 0000.

The dew point temperatures ranged from a high of 45 degrees @ 1544 down to a low of 35 degrees @ 2353.

The relative humidity values ranged from a high of 96% @ 0000 down to a low of 74% @ 1917.

The barometric pressure ranged from a high of 29.82 inches @ 0000 down to a low of 29.35 inches @ 1200.

The highest daily peak wind gust recorded across the street on the roof of the new USG building was 39 MPH at 1805 from the NW.

There was 0.28 inches of precipitation on Saturday. My December monthly total precipitation is 2.02 inches.

There was no snow on Saturday. My seasonal total snowfall is 0.3 inches. The year-to-date precipitation total is now 45.13 inches.

My current downstairs station data is now 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, available in real-time 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 and can be found on the web at https://www.cocorahs.org

Please remember that my 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 on most days (when I have had rain that is) so should not be used except for general precipitation timing.

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.

Friday and Saturday were busy days at times. We had our usual rummikub game that lasted a bit longer than usual, about 2 hours. I made a big pot of spaghetti and meatballs for dinner that carried through both Friday and Saturday evenings. The scheduled visit by my sanitary engineer was postponed now till Monday afternoon as something came up with her on Saturday. I caught up with the close of the College Football regular season with the annual Navy 31 Army 7 game and the Heisman Trophy Presentation, won by QB Joe Burrow of LSU. 

Sunday should be partly sunny and seasonable, with highs in the mid 40s and lows in the mid-upper 30s.

Monday should find cloudy with a mix of rain and snow, with highs in the mid 30s and lows in the low 30s.

Tuesday should be cloudy and rainy, milder, with high temps in the mid 40s and lows dropping to the mid-upper 20s late.

Wednesday should be mostly sunny and cold, with highs in the upper 30s and lows in the lower 20s.

Thursday should be sunny and a bit colder, with highs around or just above freezing and lows in the low 20s. 

At Midnight Saturday, cloudy skies with a temperature of 41.7 degrees, relative humidity 77%, pressure rising at 29.69 inches with a dew point temperature of 35 degrees.

Currently at 0620 EST Sunday the temperature is 42.3 degrees under cloudy skies, relative humidity at 77%, barometric pressure rising at 29.83 inches, and the dew point temperature at 36 degrees. Winds are averaging 9 MPH over the past 10 minutes from the WNW. Peak wind gust since midnight has been 21 MPH from the W at 0020. 

Good morning from the walrus on this slowly decreasingly cloudy Sunday.