Swamp Angel Study Plot Full Hourly Data – Center for Snow and Avalanche Studies

Datetime	Minimum Air Temperature (C°), Lower	Maximum Air Temperature (C°), Lower	Relative Humidity (%), Lower	Peak Wind Gust (ms), Upper	Wind Speed (ms)	Wind Direction (°), Upper	Solar Radiation-Down Looking, Broadband (W/m²)	Solar Radiation-Up Looking, Broadband (W/m²)	Longwave Radiation-Up Looking (W/m²)	Snow Surface Temperature (C°)	Snow Depth (m)	SWE (mm)	Hourly Precipitation (mm)	Barometer (inHg)
2025-02-18 14:00	-8.62	-7.19	93	6.991	1.435	183.2	545.1	221.1	308	-6.014	1.94	437	1	29.96
2025-02-18 15:00	-8.47	-7.359	90.2	6.958	1.544	190.7	632.3	332.7	310.4	-4.691	1.93	437	0	29.96
2025-02-18 16:00	-8.84	-7.359	92.1	5.537	1.238	174.9	356.4	295.9	311.1	-8.51	1.92	437	0	29.98
2025-02-18 17:00	-9.89	-8.31	89.7	7.007	1.193	215.4	75.99	90.6	289.9	-16.57	1.92	437	0	29.99
2025-02-18 18:00	-11.33	-9.78	87.9	3.953	1.048	304.2	12.51	6.104	273.5	-21.84	1.91	437	0	30.01
2025-02-18 19:00	-13.49	-10.97	88.6	2.989	0.851	312	-0.034	-1.217	265.4	-25.26	1.9	437	0	30.03
2025-02-18 20:00	-13.81	-11.35	86.4	3.381	1.063	272.1	0.287	-1.118	259.8	-25.09	1.9	437	0	30.05
2025-02-18 21:00	-12.24	-11.21	85.6	4.426	0.914	294	0.229	-1.301	264.9	-23.15	1.9	437	0	30.05
2025-02-18 22:00	-12.03	-11.44	84.7	4.312	1.209	222.5	0.204	-0.878	264.8	-23.23	1.9	437	0	30.06
2025-02-18 23:00	-15.71	-11.86	86.6	1.617	0.561	268.3	-0.667	-0.813	257.1	-29.32	1.88	437	0	30.06
2025-02-19 00:00	-6.403	-4.122	82.2	4.116	0.891	187.3	-0.388	-1.401	259.6	-9.98	1.79	436	0	30.05
2025-02-19 01:00	-14.98	-12.83	81.3	2.989	1.017	274	0.175	-0.732	252.5	-28.15	1.88	437	0	30.07
2025-02-19 02:00	-13.71	-11.68	79.71	4.688	1.585	251.4	0.403	-0.774	260.6	-24.79	1.88	437	0	30.08
2025-02-19 03:00	-11.98	-11.33	78.51	5.227	1.836	252.5	0.21	-0.839	264.8	-23.4	1.87	437	0	30.07
2025-02-19 04:00	-12.69	-11.59	81.4	4.279	1.789	248.7	0.003	-0.799	264.3	-24.69	1.87	437	0	30.07
2025-02-19 05:00	-14.21	-12.66	80.3	2.434	1.494	266.4	-0.158	-0.656	258.2	-26.86	1.87	437	0	30.07
2025-02-19 06:00	-14.45	-13.63	79.4	2.336	1.237	273.6	-0.07	-0.637	255.2	-27.79	1.87	436	0	30.07
2025-02-19 07:00	-14.53	-14.01	77.22	2.091	1.043	276.2	0.877	-0.082	254.3	-28.62	1.86	437	0	30.09
2025-02-19 08:00	-14.43	-13.25	75.28	1.895	1.053	276.7	18.86	12.15	255.2	-28.63	1.85	436	0	30.09
2025-02-19 09:00	-13.35	-6.768	33.47	3.74	1.05	231.4	263.3	138.3	275.1	-21.6	1.85	436	0	30.1
2025-02-19 10:00	-6.755	-4.744	26.67	4.181	1.658	224.3	467.9	219.5	295	-13.38	1.85	436	0	30.11
2025-02-19 11:00	-4.814	-3.463	26.07	5.439	2.173	239.2	582.6	526.8	282.9	-10.37	1.84	436	0	30.11
2025-02-19 12:00	-3.633	-2.282	24.5	5.406	1.799	244.3	636	915	275.6	-8.44	1.84	436	0	30.11
2025-02-19 13:00	-2.352	-1.633	17.4	4.655	1.345	304.4	628	809	277.8	-7.762	1.83	436	0	30.1
2025-02-19 14:00	-2.199	-1.719	19.19	5.586	1.505	328.5	495.1	631.9	269.3	-8.74	1.83	436	0	30.08
2025-02-19 15:00	-2.592	-1.86	22.24	4.459	1.347	261.6	345.6	440.9	221.9	-9.9	1.82	436	0	30.08
2025-02-19 16:00	-3.083	-2.576	21.76	3.365	1.141	225	198.4	254.3	227.9	-11.19	1.82	436	0	30.07
2025-02-19 17:00	-4.138	-2.985	48.71	3.936	1.162	215.7	88.3	108.4	252.4	-10.61	1.82	436	0	30.07
2025-02-19 18:00	-5.348	-4.109	52.47	3.185	1.214	227.9	17.29	20.1	272.1	-9.4	1.81	436	0	30.08
2025-02-19 19:00	-5.925	-5.262	62.55	3.152	0.865	236.6	-0.157	-0.675	272.7	-9.39	1.81	436	0	30.09
2025-02-19 20:00	-6.867	-5.882	81.3	1.878	0.488	239.6	-0.216	-0.979	269.3	-9.66	1.81	436	0	30.09
2025-02-19 21:00	-6.867	-6.403	80.6	2.581	0.707	234	0.104	-0.282	275.4	-8.91	1.8	436	0	30.07
2025-02-19 22:00	-6.541	-5.417	80.3	3.92	0.877	224.2	0.188	-0.346	273.5	-8.72	1.79	436	0	30.06
2025-02-19 23:00	-5.644	-4.194	76.27	5.194	1.177	202.4	0.212	-0.024	281.5	-7.518	1.79	436	0	30.06
2025-02-20 00:00	-10.95	-10.3	90.6	0.686	0.267	275.2	-0.215	-0.922	267.2	-14.16	1.79	446	0	30
2025-02-20 01:00	-6.91	-5.77	80.4	3.038	0.57	239.9	-0.381	-1.668	242.9	-13.19	1.78	436	0	30.05
2025-02-20 02:00	-8.26	-6.093	85.3	2.107	0.71	226.4	-0.487	-2.462	213.7	-16.67	1.78	436	0	30.04
2025-02-20 03:00	-8.88	-7.302	82.1	2.989	0.685	246.1	-0.429	-2.481	203.4	-19.37	1.78	436	0	30.03
2025-02-20 04:00	-10.42	-8.65	83.3	1.503	0.792	250.5	-0.571	-2.85	192.1	-21.18	1.78	437	0	30.01
2025-02-20 05:00	-10.72	-10.01	79.59	1.797	0.868	246.9	-0.309	-2.331	194.3	-21.76	1.79	437	0	30.01
2025-02-20 06:00	-10.5	-10.02	86.3	1.568	0.73	255.6	-0.32	-1.859	204.1	-20.94	1.78	437	0	30.01
2025-02-20 07:00	-10.07	-7.54	81.8	1.944	0.742	257.7	1.266	0.738	232.9	-16.86	1.78	437	0	30
2025-02-20 08:00	-8.23	-5.727	67.97	2.27	0.664	218.6	49.55	60.03	265.6	-11.23	1.78	437	0	30
2025-02-20 09:00	-6.023	-3.716	58.3	4.018	1.085	161.4	269.7	312.5	234.1	-9.46	1.77	437	0	30
2025-02-20 10:00	-5.236	-2.859	80.2	3.887	1.265	203.5	262.1	314.5	263.5	-6.882	1.77	437	0	30
2025-02-20 11:00	-5.388	-4.758	73.68	3.838	1.089	237.3	233.5	278.2	276.9	-6.532	1.77	437	0	29.99
2025-02-20 12:00	-5.714	-5.065	82.2	3.708	1.192	239.2	231.8	276.2	275.2	-7.008	1.77	438	1	29.99
2025-02-20 13:00	-5.743	-3.703	68.5	4.41	1.366	224.5	319	384.3	272	-6.49	1.78	438	0	29.97
2025-02-20 14:00	-4.969	-4.333	75.22	3.691	0.864	211	249.2	294.4	279.1	-6.211	1.77	439	0	29.95
2025-02-20 15:00	-6.472	-4.616	84.8	5.472	1.788	243.3	203.6	243.7	270.5	-7.419	1.78	440	0	29.95
2025-02-20 16:00	-7.022	-5.687	77.55	3.577	1.428	245.6	170	220.6	244.9	-9.32	1.79	441	1	29.96
2025-02-20 17:00	-7.527	-6.881	83.3	5.423	1.745	227.9	53.36	62.23	267.6	-9.12	1.79	441	0	29.97
2025-02-20 18:00	-8.1	-7.441	84	4.181	1	238.4	14.81	16.27	254.1	-11.17	1.79	442	0	29.97
2025-02-20 19:00	-8.44	-7.823	82.4	3.74	1.2	245.7	-0.024	-1.378	239.7	-12.22	1.79	443	0	29.98
2025-02-20 20:00	-8.6	-8.12	78.07	4.377	1.164	252.2	-0.023	-1.709	226.2	-13.67	1.8	444	0	29.99
2025-02-20 21:00	-10.48	-8.4	85.8	3.397	0.715	283.2	-0.497	-2.097	227.5	-15.52	1.79	444	0	30
2025-02-20 22:00	-11.37	-10.38	89.3	1.176	0.427	268	-0.464	-1.487	240.6	-16.84	1.79	445	0	30
2025-02-20 23:00	-10.73	-10.37	90	0.996	0.298	278.8	-0.077	-0.617	263.5	-13.83	1.79	445	0	30
2025-02-21 01:00	-10.72	-10.19	90.5	1.013	0.266	267.6	0.005	-0.515	268.3	-13.05	1.79	446	0	30
2025-02-21 02:00	-11.23	-10.37	89.6	0.98	0.315	288.2	-0.447	-1.538	266.1	-15.64	1.78	447	0	30.01
2025-02-21 03:00	-11.23	-9.83	93	2.025	0.589	258.3	0.083	-0.441	269.1	-12.58	1.78	448	0	30.01
2025-02-21 04:00	-10.31	-10.16	94.3	1.699	0.498	82.4	-0.152	-0.128	270.7	-11.34	1.78	448	0	30.02
2025-02-21 05:00	-10.42	-10.13	93.9	1.65	0.611	92.7	-0.285	-0.403	270.4	-12.2	1.78	449	0	30.03
2025-02-21 06:00	-14.25	-10.41	89.1	1.323	0.465	298.9	-1.298	-3.3	261.5	-22.08	1.77	449	0	30.04
2025-02-21 07:00	-15.09	-14.22	90.4	1.143	0.429	267.4	0.424	-2.125	249.5	-25.15	1.77	450	0	30.04
2025-02-21 08:00	-14.45	-11.65	90.6	1.601	0.425	273.2	30.3	26.48	256.6	-18.16	1.76	450	0	30.06
2025-02-21 09:00	-12.03	-9.21	90.9	2.221	0.875	111.6	187.5	175.4	273.9	-12.54	1.76	451	0	30.07
2025-02-21 10:00	-9.31	-8.08	81.4	3.61	1.745	92.4	501.8	471	298.9	-7.54	1.75	451	0	30.08
2025-02-21 11:00	-8.37	-7.724	73.85	3.92	1.846	95.3	562.8	632	307.4	-6.566	1.76	451	0	30.09
2025-02-21 12:00	-7.879	-5.783	65.43	4.884	1.576	91	678.5	1064	206.3	-5.842	1.75	452	0	30.1
2025-02-21 13:00	-6.515	-3.535	47.37	3.152	1.412	99	668.9	938	173.1	-5.844	1.74	452	0	30.09
2025-02-21 14:00	-4.448	-3.294	47.25	3.789	1.518	207.7	607.6	805	173.6	-6.438	1.73	452	0	30.08
2025-02-21 15:00	-4.926	-3.786	61.6	4.377	1.767	94.7	496.7	665.7	174.7	-7.207	1.73	452	0	30.09
2025-02-21 16:00	-6.192	-4.715	76.44	4.557	1.794	73.4	221	384.6	176.9	-10.19	1.73	452	0	30.1
2025-02-21 17:00	-7.049	-5.868	86.1	3.61	1.578	69.13	56.27	136.4	176.8	-14.48	1.73	453	0	30.11
2025-02-21 18:00	-7.879	-7.049	95.4	3.234	1.064	80.2	15.25	16.99	223.9	-13.05	1.73	453	0	30.12
2025-02-21 19:00	-9.4	-7.839	85.8	1.405	0.37	292	-0.184	-0.966	245.1	-12.47	1.72	453	0	30.13
2025-02-21 20:00	-10.99	-9.41	85.1	1.601	0.755	272.6	-0.292	-1.646	237.1	-13.78	1.72	453	0	30.15
2025-02-21 21:00	-12.97	-10.99	84.9	1.356	0.645	267	-0.759	-3.93	163.2	-23.93	1.72	453	0	30.15
2025-02-21 22:00	-13.75	-12.81	83.1	1.127	0.556	256.1	-0.465	-3.29	161.1	-26.18	1.72	453	0	30.17