Weather/Virginia/Instruments/S2039

N Piedmont Arec

At a soil climate station in Orange County, Virginia

At a soil climate station

SCAN network, identified by the register

Identifier: S2039
Latitude: 38.23330 N
Longitude: 78.11670 W
Elevation: 520 ft
Rank: 1,024of 1,541 in Virginia, Oct 16
Observed: 2:00 PMEDT, 2 hours ago
Air temperature: 76.8F
What it feels like: 76.8F
High so far today: 76.8F
Low so far today: 59.2F
Dew point: 68.6F
Relative humidity: 76%
Strongest wind today: 12mph
Soil temperature, first probe: 70F
Soil temperature, second probe: 68F
Soil temperature, third probe: 68F
Soil moisture, first probe: 36%
Soil moisture, second probe: 37%
Soil moisture, third probe: 40%

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Station charts

N Piedmont Arec Report

Rank 1,024 of 1,541 in Virginia, Oct 16. The 247 rank orders a state's stations by their 247 score out of 100: how reliably they report, how accurate their readings are against a reference station, how their readings pass their checks, and how they stand against the forecast.

Rank: 1,024of 1,541 in Virginia, Oct 16
Schedule: every houron the hour's :00
Reports received, 24 hours: 24 of 24100% of its schedule
Reports received, 7 days: 168 of 168100% of its schedule
Days reported, 30 days: 30 of 30
Longest silence, 7 days: 1 hourfrom Oct 9, 4:00 PM
Latest report: Oct 16, 3:00 PMlocal time

Its schedule is one report every hour, 24 in 24 hours. Two reports in the same hour count as one received.

24 hours7 days30 days

The readings these charts were drawn from, as a table

Hour	Temperature F	Dew point F	Relative humidity %	Wind mph	Wind direction °	Reports
Fri 16, 3 PM	80.4	70.1	71	-	-	1
Fri 16, 2 PM	76.8	68.6	76	10	197	1
Fri 16, 1 PM	73.0	67.5	83	12	200	1
Fri 16, 12 PM	69.4	66.6	91	12	196	1
Fri 16, 11 AM	66.4	65.2	96	10	196	1
Fri 16, 10 AM	64.8	64.2	98	8	192	1
Fri 16, 9 AM	63.0	63.0	100	9	196	1
Fri 16, 8 AM	61.5	61.5	100	8	192	1
Fri 16, 7 AM	60.6	60.6	100	7	180	1
Fri 16, 6 AM	60.4	60.4	100	6	186	1
Fri 16, 5 AM	60.1	60.1	100	5	188	1
Fri 16, 4 AM	59.7	59.7	100	3	197	1
Fri 16, 3 AM	59.5	59.5	100	2	192	1
Fri 16, 2 AM	59.5	59.2	99	2	197	1
Fri 16, 1 AM	59.2	58.9	99	1	198	1
Fri 16, 12 AM	59.4	59.1	99	0	94	1
Thu 15, 11 PM	59.5	59.2	99	0	84	1
Thu 15, 10 PM	59.5	58.9	98	0	4	1
Thu 15, 9 PM	60.1	58.4	94	1	46	1
Thu 15, 8 PM	60.8	58.1	91	2	71	1
Thu 15, 7 PM	61.0	59.2	94	2	48	1
Thu 15, 6 PM	61.7	59.0	91	2	58	1
Thu 15, 5 PM	62.4	58.8	88	3	63	1
Thu 15, 4 PM	62.6	59.3	89	4	69	1

The readings these charts were drawn from, as a table

Hour	Temperature F	Dew point F	Relative humidity %	Wind mph	Wind direction °	Reports
Fri 16, 3 PM	80.4	70.1	71	-	-	1
Fri 16, 2 PM	76.8	68.6	76	10	197	1
Fri 16, 1 PM	73.0	67.5	83	12	200	1
Fri 16, 12 PM	69.4	66.6	91	12	196	1
Fri 16, 11 AM	66.4	65.2	96	10	196	1
Fri 16, 10 AM	64.8	64.2	98	8	192	1
Fri 16, 9 AM	63.0	63.0	100	9	196	1
Fri 16, 8 AM	61.5	61.5	100	8	192	1
Fri 16, 7 AM	60.6	60.6	100	7	180	1
Fri 16, 6 AM	60.4	60.4	100	6	186	1
Fri 16, 5 AM	60.1	60.1	100	5	188	1
Fri 16, 4 AM	59.7	59.7	100	3	197	1
Fri 16, 3 AM	59.5	59.5	100	2	192	1
Fri 16, 2 AM	59.5	59.2	99	2	197	1
Fri 16, 1 AM	59.2	58.9	99	1	198	1
Fri 16, 12 AM	59.4	59.1	99	0	94	1
Thu 15, 11 PM	59.5	59.2	99	0	84	1
Thu 15, 10 PM	59.5	58.9	98	0	4	1
Thu 15, 9 PM	60.1	58.4	94	1	46	1
Thu 15, 8 PM	60.8	58.1	91	2	71	1
Thu 15, 7 PM	61.0	59.2	94	2	48	1
Thu 15, 6 PM	61.7	59.0	91	2	58	1
Thu 15, 5 PM	62.4	58.8	88	3	63	1
Thu 15, 4 PM	62.6	59.3	89	4	69	1
Thu 15, 3 PM	62.4	59.7	91	4	55	1
Thu 15, 2 PM	61.7	59.6	93	2	34	1
Thu 15, 1 PM	63.3	59.0	86	2	23	1
Thu 15, 12 PM	64.0	59.7	86	3	40	1
Thu 15, 11 AM	65.5	60.5	84	2	28	1
Thu 15, 10 AM	66.0	61.0	84	2	25	1
Thu 15, 9 AM	67.6	62.2	83	3	31	1
Thu 15, 8 AM	69.1	64.0	84	2	31	1
Thu 15, 7 AM	70.2	66.8	89	4	43	1
Thu 15, 6 AM	71.2	68.1	90	4	44	1
Thu 15, 5 AM	69.8	69.2	98	2	31	1
Thu 15, 4 AM	70.2	69.3	97	2	1	1
Thu 15, 3 AM	70.2	69.0	96	3	318	1
Thu 15, 2 AM	70.2	69.0	96	2	316	1
Thu 15, 1 AM	71.2	69.4	94	3	315	1
Thu 15, 12 AM	72.3	69.2	90	2	344	1
Wed 14, 11 PM	79.7	68.2	68	7	309	1
Wed 14, 10 PM	74.3	68.4	82	5	303	1
Wed 14, 9 PM	77.5	68.1	73	2	257	1
Wed 14, 8 PM	76.5	69.1	78	3	240	1
Wed 14, 7 PM	78.8	69.0	72	1	294	1
Wed 14, 6 PM	85.1	67.1	55	2	228	1
Wed 14, 5 PM	87.3	66.9	51	7	207	1
Wed 14, 4 PM	88.0	65.8	48	7	186	1
Wed 14, 3 PM	87.8	65.6	48	6	206	1
Wed 14, 2 PM	86.7	64.0	47	7	212	1
Wed 14, 1 PM	86.4	64.9	49	6	207	1
Wed 14, 12 PM	84.9	62.4	47	7	221	1
Wed 14, 11 AM	82.6	64.8	55	6	200	1
Wed 14, 10 AM	76.6	64.8	67	6	221	1
Wed 14, 9 AM	68.2	63.2	84	3	188	1
Wed 14, 8 AM	62.8	60.4	92	2	208	1
Wed 14, 7 AM	62.2	61.0	96	2	227	1
Wed 14, 6 AM	63.7	61.3	92	2	234	1
Wed 14, 5 AM	62.6	61.1	95	1	235	1
Wed 14, 4 AM	64.0	61.9	93	1	280	1
Wed 14, 3 AM	63.9	62.1	94	1	264	1
Wed 14, 2 AM	64.9	62.8	93	3	228	1
Wed 14, 1 AM	66.7	63.7	90	2	246	1
Wed 14, 12 AM	67.5	63.8	88	2	218	1
Tue 13, 11 PM	70.0	64.6	83	2	221	1
Tue 13, 10 PM	70.5	64.7	82	3	216	1
Tue 13, 9 PM	72.0	65.5	80	2	227	1
Tue 13, 8 PM	73.4	65.0	75	1	207	1
Tue 13, 7 PM	76.6	64.8	67	4	193	1
Tue 13, 6 PM	80.1	64.4	59	4	180	1
Tue 13, 5 PM	82.2	63.9	54	6	186	1
Tue 13, 4 PM	82.9	62.3	50	8	187	1
Tue 13, 3 PM	82.4	63.5	53	8	192	1
Tue 13, 2 PM	81.9	62.5	52	7	179	1
Tue 13, 1 PM	81.0	61.7	52	7	171	1
Tue 13, 12 PM	78.4	63.3	60	6	179	1
Tue 13, 11 AM	74.7	60.3	61	3	175	1
Tue 13, 10 AM	70.2	60.3	71	2	184	1
Tue 13, 9 AM	62.6	58.3	86	1	109	1
Tue 13, 8 AM	55.8	54.1	94	1	108	1
Tue 13, 7 AM	55.0	54.4	98	0	84	1
Tue 13, 6 AM	55.8	54.7	96	1	338	1
Tue 13, 5 AM	58.1	55.2	90	1	280	1
Tue 13, 4 AM	54.9	54.1	97	1	318	1
Tue 13, 3 AM	55.6	54.7	97	1	130	1
Tue 13, 2 AM	56.8	56.2	98	1	322	1
Tue 13, 1 AM	58.8	56.5	92	1	317	1
Tue 13, 12 AM	61.0	59.8	96	2	283	1
Mon 12, 11 PM	61.9	60.7	96	1	268	1
Mon 12, 10 PM	61.7	60.2	95	1	277	1
Mon 12, 9 PM	61.5	59.7	94	2	266	1
Mon 12, 8 PM	65.5	60.5	84	3	315	1
Mon 12, 7 PM	69.6	60.9	74	1	258	1
Mon 12, 6 PM	75.7	62.2	63	3	294	1
Mon 12, 5 PM	78.8	59.7	52	4	304	1
Mon 12, 4 PM	79.2	59.5	51	5	303	1
Mon 12, 3 PM	78.1	59.6	53	4	272	1
Mon 12, 2 PM	76.3	59.4	56	3	2	1
Mon 12, 1 PM	75.2	60.3	60	3	346	1
Mon 12, 12 PM	74.3	61.3	64	5	352	1
Mon 12, 11 AM	70.5	61.0	72	3	324	1
Mon 12, 10 AM	68.0	61.2	79	3	45	1
Mon 12, 9 AM	65.3	60.0	83	2	33	1
Mon 12, 8 AM	62.6	59.3	89	2	336	1
Mon 12, 7 AM	59.9	59.9	100	2	346	1
Mon 12, 6 AM	59.4	59.1	99	1	284	1
Mon 12, 5 AM	60.3	60.0	99	0	305	1
Mon 12, 4 AM	61.0	60.4	98	2	337	1
Mon 12, 3 AM	61.0	60.7	99	3	295	1
Mon 12, 2 AM	61.2	60.9	99	2	251	1
Mon 12, 1 AM	61.0	60.7	99	1	14	1
Mon 12, 12 AM	61.0	60.7	99	1	92	1
Sun 11, 11 PM	60.3	59.7	98	5	306	1
Sun 11, 10 PM	60.1	59.5	98	3	325	1
Sun 11, 9 PM	59.9	59.3	98	3	317	1
Sun 11, 8 PM	60.4	59.8	98	3	11	1
Sun 11, 7 PM	60.8	60.2	98	2	14	1
Sun 11, 6 PM	61.0	60.4	98	3	21	1
Sun 11, 5 PM	61.2	60.3	97	2	29	1
Sun 11, 4 PM	61.0	60.1	97	3	14	1
Sun 11, 3 PM	61.2	60.3	97	4	353	1
Sun 11, 2 PM	60.8	59.9	97	3	4	1
Sun 11, 1 PM	60.3	59.4	97	3	360	1
Sun 11, 12 PM	60.3	59.4	97	4	2	1
Sun 11, 11 AM	59.5	58.6	97	4	5	1
Sun 11, 10 AM	59.2	58.3	97	3	17	1
Sun 11, 9 AM	59.4	58.5	97	3	18	1
Sun 11, 8 AM	59.9	59.3	98	4	4	1
Sun 11, 7 AM	60.1	59.5	98	3	8	1
Sun 11, 6 AM	59.9	59.3	98	2	15	1
Sun 11, 5 AM	59.9	59.3	98	2	23	1
Sun 11, 4 AM	60.3	59.7	98	3	32	1
Sun 11, 3 AM	59.5	58.6	97	2	19	1
Sun 11, 2 AM	59.0	58.1	97	3	33	1
Sun 11, 1 AM	58.8	57.6	96	3	34	1
Sun 11, 12 AM	62.1	56.5	82	2	20	1
Sat 10, 11 PM	63.1	55.4	76	3	37	1
Sat 10, 10 PM	64.2	54.2	70	4	43	1
Sat 10, 9 PM	64.9	54.1	68	5	49	1
Sat 10, 8 PM	64.8	54.0	68	5	49	1
Sat 10, 7 PM	64.9	54.9	70	4	47	1
Sat 10, 6 PM	65.5	54.6	68	4	51	1
Sat 10, 5 PM	67.1	53.6	62	4	54	1
Sat 10, 4 PM	67.3	55.1	65	6	52	1
Sat 10, 3 PM	66.9	54.3	64	5	48	1
Sat 10, 2 PM	67.3	52.9	60	4	55	1
Sat 10, 1 PM	63.5	52.3	67	3	40	1
Sat 10, 12 PM	61.7	53.3	74	3	33	1
Sat 10, 11 AM	60.1	51.0	72	2	12	1
Sat 10, 10 AM	60.6	51.1	71	3	348	1
Sat 10, 9 AM	57.9	51.1	78	1	12	1
Sat 10, 8 AM	56.5	50.4	80	1	57	1
Sat 10, 7 AM	56.8	50.0	78	1	7	1
Sat 10, 6 AM	54.5	51.6	90	1	348	1
Sat 10, 5 AM	55.0	52.4	91	1	345	1
Sat 10, 4 AM	55.4	52.8	91	1	3	1
Sat 10, 3 AM	54.9	51.4	88	1	307	1
Sat 10, 2 AM	55.4	52.5	90	1	284	1
Sat 10, 1 AM	55.9	52.4	88	1	280	1
Sat 10, 12 AM	57.6	52.1	82	1	301	1
Fri 9, 11 PM	58.6	52.4	80	1	300	1
Fri 9, 10 PM	59.0	53.5	82	0	282	1
Fri 9, 9 PM	60.1	53.6	79	1	239	1
Fri 9, 8 PM	61.2	55.6	82	1	260	1
Fri 9, 7 PM	64.0	53.2	68	1	275	1
Fri 9, 6 PM	68.9	54.9	61	1	285	1
Fri 9, 5 PM	72.5	53.9	52	1	227	1
Fri 9, 4 PM	74.3	42.5	32	2	211	1

The readings these charts were drawn from, as a table

Day	High F	Low F	Highest dew point F	Lowest dew point F	Highest humidity %	Lowest humidity %	Strongest gust mph
Oct 16	80.4	59.2	70.1	58.9	100	71	22
Oct 15	72.3	59.5	69.4	58.1	99	83	10
Oct 14	88.0	62.2	69.1	60.4	96	47	13
Oct 13	82.9	54.9	65.5	54.1	98	50	16
Oct 12	79.2	59.4	62.2	59.1	100	51	14
Oct 11	62.1	58.8	60.4	56.5	98	82	14
Oct 10	67.3	54.5	55.4	50.0	91	60	12
Oct 9	75.4	51.6	55.6	41.5	86	30	8
Oct 8	79.3	53.2	56.4	44.4	98	33	11
Oct 7	72.5	41.9	55.7	41.4	98	50	19
Oct 6	64.4	48.2	47.2	35.5	88	38	12
Oct 5	75.6	56.8	61.0	45.4	98	38	16
Oct 4	64.8	55.6	62.0	55.0	99	88	8
Oct 3	71.6	53.8	66.8	52.6	98	82	13
Oct 2	87.8	59.5	70.3	58.1	97	49	16
Oct 1	85.5	58.6	64.9	58.3	100	43	12
Sep 30	78.8	57.6	64.9	57.3	99	53	16
Sep 29	70.5	59.7	62.4	57.7	96	64	7
Sep 28	73.9	54.3	61.2	53.7	98	61	9
Sep 27	72.7	57.7	56.3	49.8	86	53	14
Sep 26	74.3	56.5	54.8	42.7	91	35	25
Sep 25	71.1	51.3	46.8	39.0	77	32	19
Sep 24	62.6	53.6	52.3	47.6	87	69	16
Sep 23	58.5	54.7	57.9	53.6	98	87	18
Sep 22	64.9	58.6	64.6	56.9	99	94	17
Sep 21	73.0	64.8	68.5	64.2	98	83	11
Sep 20	82.2	68.7	72.7	63.8	88	65	14
Sep 19	79.0	67.1	69.6	59.0	90	65	10
Sep 18	84.6	69.4	72.4	68.6	99	59	11
Sep 17	87.8	65.8	72.1	64.9	97	59	28

Station report

N Piedmont Arec, in 4 sheets

Drawn from its report of Oct 16, 2026, 2:00 PM local time, in the manner of the Field Book, and opened beside the plates that explain each part of it.

1The air

Contents

76.8 F with a dew point of 68.6 F, 76 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,900 ft up.

From the Field Book

FB-WAT-002, Fig. CHumidity variables
The same lift, worked for another air: how the humidity climbs as the air rises and cools.
FB-ENG-011, Fig. AWater vapour as a gas
How much vapour air can hold at each temperature, which sets the dew point.
FB-ENG-005, Fig. ALapse rates and stability
The dry rate the lifted air cools at, against the air around it.

2The column

Contents

At 520 ft above sea level, 2 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.36 inHg and the temperature at 57.1 F; it reports 76.8 F, 19.7 F warmer than standard.

From the Field Book

FB-ENG-001, Fig. AAtmosphere in section
The whole standard atmosphere this station stands in, from the ground to the edge of space.
FB-ENG-003, Fig. CHydrostatic balance
Why a barometer 520 ft up reads less: it weighs only the air above it.

3The sun

Contents

On Oct 16 the noon sun stands 43 degrees above the horizon at 38.23 N, and the day is 11 h 02 min long. Level ground there takes 68 per cent of the noon sunlight a surface facing the sun would.

From the Field Book

FB-ENG-007, Fig. ARadiation budget
Where the sunlight that reaches this ground goes once it arrives.

4The instrument

Contents

A weather instrument, 520 ft above sea level. Its report of Oct 16, 2026, 2:00 PM local time is written on the sensors that made it.

From the Field Book

FB-INS-001, Fig. AWhat an instrument is
A surface station taken apart: what each of these sensors is.

N Piedmont Arec

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N Piedmont Arec Report

N Piedmont Arec, in 4 sheets

1The air

From the Field Book

2The column

From the Field Book

3The sun

From the Field Book

4The instrument

From the Field Book

What this instrument measures for

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