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

Date	Daily Average Air Temperature (C°), Lower	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)	Daily Precipitation (mm)	Water Year Precipitation (mm)
2025-10-19	4.966	-1.788	11.05	28.68	7.987	1.522	236.1	32.34	188.2	206.8	2.993	0.02	0.7	0	147
2025-10-20	2.161	-3.067	6.403	45.84	8.22	1.365	235.9	33.13	187.3	200.9	3.15	0.001	1.5	0	147
2025-10-21	2.893	-3.281	11.33	32.01	5.08	0.918	243	33.03	185.1	199.3	2.763	0.014	1.5	0	147
2025-10-22	3.854	-1.326	10.8	37.55	6.452	1.092	246.3	28.86	160.9	228.9	4.066	0.01	1	0	147
2025-10-23	1.134	-4.277	6.094	78.95	5.815	0.934	231	17.28	103.1	281.6	1.969	0.025	5.7	3	150
2025-10-24	-1.816	-5.911	2.614	81.9	4.9	0.773	94.2	36.49	150.6	254.2	-0.205	0.01	1.2	0	150
2025-10-25	0.686	-4.659	7.234	57.81	5.749	0.884	233.3	30.71	187.6	210.7	1.97	0.009	1.1	0	150
2025-10-26	3.447	-1.676	9.35	43.93	5.717	1.337	226.1	29.78	166.9	218.8	3.304	0.017	0.8	0	150
2025-10-27	1.208	-6.6	6.825	50.79	9.41	1.395	209.8	25.88	144.2	214.9	1.942	0.022	1.6	0	150
2025-10-28	-3.15	-9.29	2.587	24.09	7.203	1.116	106.7	32.54	170	166.2	-1.446	0.013	1.1	0	150
2025-10-29	0.707	-3.66	7.613	34.13	5.259	1.06	92.4	30.55	163.7	198.8	0.99	0.005	1.7	0	150
2025-10-30	0.859	-4.151	7.544	32.21	6.844	1.082	243.5	31.24	164.3	181.2	0.212	0.017	1.3	0	150
2025-10-31	0.318	-3.604	4.993	34.69	7.285	1.134	235.5	18.56	109.8	220.1	-0.865	0.02	1.2	0	150
2025-11-01	0.668	-3.561	5.952	36.84	7.546	1.186	96.4	25.12	138.5	212.6	-0.112	0.008	1.1	0	150
2025-11-02	4.162	-0.862	11.66	51.12	6.942	0.994	242.1	28.65	154.3	222	2.932	0.015	1.3	0	150
2025-11-03	4.59	-0.496	11.12	38.46	5.227	1.166	248.7	21.43	123.9	230	1.929	0.008	1.2	0	150
2025-11-04	2.421	-2.069	9.78	34.25	4.524	1.165	255	26.75	144.1	201.1	1.056	-0.001	1.3	0	150
2025-11-05	3.797	-1.972	11.62	27.79	6.435	1.244	240	28.54	152.1	203.2	2.02	0.016	0.7	0	150
2025-11-06	1.589	-3.633	4.937	38.96	7.383	1.228	215.8	20.29	118.2	216.7	0.658	0.016	1.6	0	150
2025-11-07	0.16	-5.236	6.123	33.29	7.285	1.052	233.6	28.28	151.3	208.3	0.778	0.01	1.1	0	150
2025-11-08	-1.675	-4.87	2.758	55.08	6.386	0.991	81.6	26.73	142.4	196.3	-0.919	0.008	1.6	0	150
2025-11-09	-1.174	-6.12	5.292	40.72	6.207	0.965	81.6	27.16	143.9	194.5	-1.69	0.012	1.7	0	150
2025-11-10	1.304	-3.716	8.77	44.9	5.439	1.011	17.44	26.43	141.8	207.8	-0.143	0.017	1.4	0	150
2025-11-11	1.464	-1.999	7.501	36.4	4.802	0.879	231.7	20.12	110.8	206	-2.244	0.01	1.6	0	150
2025-11-12	2.778	-2.312	9.77	31.39	4.769	0.945	243	23.63	126.8	224.2	0.665	0.008	1.4	0	150
2025-11-13	1.711	-2.154	7.178	42.61	6.501	1.306	239.5	24.46	133.7	211.7	0.03	0.014	1.4	0	150
2025-11-14	2.155	-2.536	10.5	40.61	5.096	1.004	250.7	24.75	135.2	214.2	-0.074	0.011	1.1	0	150
2025-11-15	2.969	-1.313	10.23	52.14	4.851	0.947	217.8	23.41	127.1	235.1	2.259	0.014	1.2	0	150
2025-11-16	-0.121	-5.137	3.84	79.29	5.733	1.205	242.4	10.06	64.54	280.8	-1.136	0.119	14.8	11	161
2025-11-17	-5.468	-8.4	-3.222	87.3	7.415	1.145	239.3	72.18	23.11	294.3	-10.49	0.135	21.9	6	167
2025-11-18	-3.603	-9.16	1.602	73.62	4.573	0.958	245.9	85.8	75.11	281.6	-11.24	0.102	18.8	1	168
2025-11-19	-2.376	-4.053	0.195	81.5	5.21	0.936	237.4	60.75	68.07	279.3	-6.492	0.151	23.2	4	172
2025-11-20	-3.135	-6.218	0.096	91.4	3.316	0.833	113.5	72.87	39.21	303.3	-5.28	0.221	30.7	8	180
2025-11-21	-3.637	-5.545	-1.748	97.5	4.181	0.799	87.8	90.7	49.43	301.6	-3.752	0.171	31.3	1	181
2025-11-22	-4.202	-9.72	2.841	72.52	3.414	0.918	251.8	98.4	94.8	253.5	-12.87	0.159	34.5	0	181
2025-11-23	-3.51	-6.248	-0.127	90.8	4.247	0.755	197.5	35.85	14.88	291.5	-5.794	0.369	57.2	4	185
2025-11-24	-6.522	-10.36	-0.875	88.4	4.508	0.731	265.2	100.9	82.1	286.9	-16.96	0.327	49.7	3	188
2025-11-25	-7.899	-11.8	-2.312	68.15	5.227	0.923	250.7	94.6	179.7	243.1	-19.76	0.291	49.1	0	188
2025-11-26	-5.194	-10.7	-0.747	52.83	5.276	0.973	236.8	87.8	115.1	207.4	-15.59	0.275	49.2	0	188
2025-11-27	-2.502	-6.824	4.024	61.37	4.247	0.767	256.9	92.5	120	198.1	-14.34	0.256	49.1	1	189
2025-11-28	-2.324	-5.938	2.502	54.53	6.762	1.149	225.7	82	106.7	226.1	-11.07	0.254	48.5	0	189
2025-11-29	-6.534	-10.68	-2.296	48.23	5.129	1.164	205.7	88.3	118.7	178.9	-16.83	0.252	49.1	0	189
2025-11-30	-7.3	-10.89	-4.728	76.88	6.582	1.11	243	21.42	21.88	254.9	-11.57	0.499	69	0	189
2025-12-01	-11.93	-15.26	-7.513	92	6.027	1.017	102.7	104.7	47.1	272.4	-18.65	0.53	77.9	80	269
2025-12-02	-8.61	-14.07	-5.025	92.3	8	0.96	221.8	48.38	19.21	279.8	-13.19	0.582	87.6	2	271
2025-12-03	-10.39	-16.42	-8.15	93.9	4.132	0.769	94.5	45.14	15.02	272.9	-12.05	0.601	96.4	5	276
2025-12-04	-14.35	-17.86	-9.23	91.3	4.181	0.669	242.3	96.8	42.41	260.6	-26.09	0.549	96.5	0	276
2025-12-05	-10	-15.3	-5.895	93.9	4.916	0.859	186.8	85	28.15	275.5	-15.02	0.576	99	2	278
2025-12-06	-6.363	-9.41	-4.109	95.7	9.03	1.196	179.3	17.85	6.607	288.9	-7.419	0.71	119	13	291
2025-12-07	-9.38	-14.01	-5.687	74.72	12.32	1.36	187.4	103.4	57.58	279.2	-17.28	0.645	118.7	0	291
2025-12-08	-8.14	-12.3	-2.269	78.4	4.23	0.781	249.1	81.1	99	280.1	-17.87	0.608	118.1	0	291
2025-12-09	-3.244	-10.03	2.363	67.19	5.994	1.097	56.6	86.7	143.1	249.6	-13.05	0.584	117.7	0	291
2025-12-10	-2.27	-7.596	4.433	75.61	5.014	0.865	28.61	88.5	127.5	217.8	-12.62	0.551	117.6	0	291
2025-12-11	-1.225	-4.982	5.319	47.26	5.08	0.844	255.1	86.6	111.2	196.1	-14.56	0.536	117.5	0	291
2025-12-12	-1.263	-4.995	6.812	42.54	4.426	0.91	258.6	86.3	111.4	187.4	-15.26	0.525	117.4	0	291
2025-12-13	-2.371	-6.429	5.389	34.22	4.557	0.93	250.4	85.9	111.6	178.3	-16.96	0.519	117.1	0	291
2025-12-14	-1.243	-5.094	6.897	32.98	3.773	1.066	253.7	83.6	108.6	179	-15.86	0.517	117	0	291
2025-12-15	-1.885	-6.304	6.881	34.75	3.381	0.835	256.1	73.66	95.2	195.4	-15.14	0.507	117.6	0	291
2025-12-16	-2.945	-7.655	3.431	40.4	6.484	1.097	199.1	83.3	108.7	186.9	-15.86	0.504	117.1	0	291
2025-12-17	-1.069	-6.274	4.614	56.22	11.35	1.603	202.5	69.84	92.1	237.1	-10.05	0.495	115.8	0	291
2025-12-18	-4.057	-10.52	-0.819	39.44	10.88	1.862	224	88.3	115.3	229.7	-10.89	0.485	114.7	0	291
2025-12-19	0.605	-4.897	6.179	38.23	8.4	1.262	240.1	80.5	104	224.7	-10.01	0.48	114.5	0	291
2025-12-20	0.476	-2.17	3.319	52.02	8.77	1.221	166.7	72.14	96.2	263	-5.88	0.462	114.4	0	291
2025-12-21	0.01	-3.268	6.43	65.35	5.635	0.948	231.2	77.55	99.3	229.6	-8.54	0.459	115	0	291
2025-12-22	0.199	-4.29	6.63	40.51	5.504	1.285	238.5	79.68	107.7	191	-12.71	0.454	115	0	291
2025-12-23	0.166	-5.081	6.937	35.26	4.688	1.097	235.3	83.8	115.3	212.3	-11.91	0.452	114.4	0	291
2025-12-24	1.625	-1.03	5.164	73.07	5.994	1.178	242.3	72.65	102.1	291	-2.66	0.449	119.1	2	293
2025-12-25	-0.469	-2.48	2.222	87.8	7.219	1.139	244.5	43.76	25.63	263.5	-4.13	0.503	129.4	5	298
2025-12-26	-2.266	-4.477	0.35	65.99	5.57	1.316	233.1	93.8	124.2	233.2	-7.724	0.496	125	0	298
2025-12-27	-3.681	-8.03	-1.593	68.67	7.66	1.297	244.9	48.68	60.65	269.8	-6.942	0.515	127.9	0	298
2025-12-28	-11.38	-14.77	-7.078	68.08	9.42	1.341	202.9	91.9	57.39	233.2	-18.54	0.547	131.1	11	309
2025-12-29	-8.53	-14.5	-1.676	44.35	5.112	0.924	258.2	88.5	108.9	162.4	-22.75	0.539	130.5	14	323
2025-12-30	-4.606	-10.14	3.065	50.64	4.018	0.843	258.7	87.4	112.5	178.5	-18.63	0.534	131.6	2	325
2025-12-31	-1.5	-5.193	5.981	44.7	2.711	0.788	251.8	83.2	108	199.9	-15.14	0.525	136.2	1	326
2026-01-01	-1.145	-3.73	1.124	81.6	9.13	0.953	200.5	32.8	24.12	303.4	-3.485	0.611	142.7	2	328
2026-01-02	-4.297	-8.88	-1.211	91.8	6.697	0.986	239.2	70.19	31.55	298.4	-7.513	0.734	156.9	7	335
2026-01-03	-3.035	-8.43	3.29	66.66	5.227	0.864	243.9	76.34	51.51	290.8	-12.7	0.706	156.2	0	335
2026-01-04	-1.285	-5.388	3.138	50.3	7.203	1.31	238	81.6	105.4	220.1	-10.84	0.684	155.5	0	335
2026-01-05	-5.412	-7.54	-2.747	68.82	6.664	1.161	240.8	68.3	71.36	245.1	-10.92	0.688	156.1	0	335
2026-01-06	-7.217	-12.87	-1.326	55.63	5.749	1.052	240.8	95.6	120.7	185.3	-18.24	0.675	156.5	37	372