MONTHLY WEATHER OBSERVATIONS
LAVALE MD
MAY 2005
OBSERVERS DAVID DREWERY AND CHARLES ORLICK (DATA COMPILED BY NATE MULLINS)

Special Observations:  F=fog, T=thunder, H=hail,
S=sleet, G=glaze, DW=damaging winds
Observation time for this station is midnight.

	Temperature, °F	Precipitation, In.		
			Liquid	Solid	7am
	24-hour		Rain	Snow/	Snow
Date	Max	Min	Equiv	Ice	Depth	Special Obs.

1	58	43
2	48	35	   T
3	54	34
4	62	34				frost
5	64	33				frost
6	64	40
7	62	36	 .09
8	78	39
9	79	42
10	82	44	 .95			T
11	86	56	   T			F
12	72	64
13	65	52
14	80	52	   T
15	70	59	 .15
16	60	44
17	70	44
18	74	42
19	71	47	 .46
20	57	43	1.12			F
21	70	43	   T			F,T
22	72	44				F
23	58	54	1.40			F,T
24	55	51	   T			F
25	63	49	 .03
26	77	48	 .01
27	78	53
28	68	41	 .05
29	75	46
30	65	50	   T
31	75	50				F

AVG/SUM	68.1	45.5	4.26	 0.0	 -  	  	 	
EXT	86	33	1.40	  -	 -
Date	11	5	23	  -	 -
*=Also occurred on earlier dates

Miscellaneous Stats:

Mean Monthly Temperature:  56.8 F
Year precipitation to date:  17.99"
Season snowfall to date:  23.6"
Number of days with:
	Fog:  7 
	Ice Pellets:  0   	
	Glaze:  0 	
	Thunder:  3 	
	Hail:  0 	
	Damaging Winds:  0	

NOTES AND/OR SIGNIFICANT EVENTS:

1:  Partly cloudy, cool and breezy with NW winds gusting to 20 mph.
2:  Sunny early then cloudy with some drizzle by 9am, trace of rain.  Became sunny again by 3pm
    but continued unseasonably cool with a high of only 48 F.
3:  Partly cloudy and continued cool with gusty NW winds.  Some light snow was reported on nearby
    ridges early this morning.
4:  Clear and cold overnight with frost.  Mostly sunny and slightly warmer this afternoon.
5:  Another cold frosty morning low 33 F.  Became partly cloudy with N winds gusting to 25 mph.
6:  Partly cloudy with high overcast and light NE winds.
7:  Clear and calm early, became cloudy with rain 1-2pm .09" fell.  Clearing again by dark.
8:  Sunny, warmer and breezy.
9:  Sunny, warm and breezy.
10: Sunny and warm.  Became cloudy by 4pm.  Series of localized thunderstorms developed overhead
    between 6-8pm and produced some heavy downpours .95" fell.
11: AM fog lifted by 10am and became sunny and very warm.  Became cloudy by 5pm.  Storms
    threatened but broke up.  No rain fell.
12: Cloudy and calm early, then partial clearing with gusty west winds to 25 mph.
13: Cloudy and calm early.  clearing with light east winds during the afternoon.
14: Increasing clouds and warmer again with west winds gusting to 20 mph.  Few light showers late,
    only a trace.
15: Early AM showers .15" fell.  Then clearing, breezy and slightly cooler this afternoon.
16: Clear early then became mostly cloudy and cool with NW winds gusting to 25 mph.
17: Cloudy AM becoming clear during the afternoon.
18: Clear early with increasing PM clouds and light winds.
19: Cloudy then partly sunny with light SE breezes.  Rain 4pm-midnight .46" fell.
20: Rain overnight heavy at times ended by 10am another 1.12" fell for an 18-hour total of 1.58".
    Became windy after the rain stopped.  Continued cloudy and cool through the day.
21: AM mountain fog, then partly cloudy.  Brief thunderstorm about 4pm with just a trace of rain.
    Gusty wind to 20 mph.
22: Fog early, then clear becoming partly cloudy.
23: Light drizzle during the early morning.  Light rain began around noon.  Heavy showers and
    thunderstorms around 2pm and again this evening from about 6-9pm with some good downpours at
    times and NW winds gusting to 25 mph.  A total of 1.40" rain fell.
24: Mostly cloudy and continued cool with a few very light showers, trace.
25: Cloudy and breezy with drizzle developing in the afternoon .03" fell.
26: Sunny early then cloudy with light drizzle.  South winds around 10 mph gusting to 25 mph.
27: Clear early then partly cloudy, clear again by noon.  Light NE breezes.
28: Mostly cloudy with light AM showers starting around 9:00.  North winds gusting to 20 mph.
29: Clear and calm early, then partly cloudy with gusty NW breezes, calm again by sunset.
30: Partly cloudy and calm morning.  Brief shower about 1pm then sunny and breezy.
31: Early morning fog, then partly cloudy and warmer than yesterday with light winds.

SUMMARY:

May was a relatively quiet month with below normal temperatures and near normal precipitation.
It was the coolest May since 1997, with the mean temperature nearly 9 degrees cooler than last
May, which was the warmest on record.  The cool weather pattern helped to suppress thunderstorm
activity; localized downpours pushed our rainfall total higher than most surrounding stations.

Additional notes/records

2: Record low max 48 F
3: Record low max 54 F
12: Record high min 64 F
23: Daily record 1.40" of rainfall
24: Record low max 55 F

May 2005 tied 1994 for the 4th coolest May on record with a mean temperature of 56.8 F.