diff --git a/nblibrary/ice/Hemis_seaice_visual_compare_contour.ipynb b/nblibrary/ice/Hemis_seaice_visual_compare_contour.ipynb
index 7d05fdd..d0cad74 100644
--- a/nblibrary/ice/Hemis_seaice_visual_compare_contour.ipynb
+++ b/nblibrary/ice/Hemis_seaice_visual_compare_contour.ipynb
@@ -177,6 +177,9 @@
     "ds1_ann = ds1.resample(time=\"YS\").mean(dim=\"time\")\n",
     "ds2_ann = ds2.resample(time=\"YS\").mean(dim=\"time\")\n",
     "\n",
+    "climo_nyears = min(climo_nyears, len(ds1_ann.time))\n",
+    "climo_nyears = min(climo_nyears, len(ds2_ann.time))\n",
+    "\n",
     "with open(\"cice_masks.yml\", \"r\") as file:\n",
     "    cice_masks = yaml.safe_load(file)\n",
     "\n",
diff --git a/nblibrary/ice/Hemis_seaice_visual_compare_obs_lens.ipynb b/nblibrary/ice/Hemis_seaice_visual_compare_obs_lens.ipynb
index feb71a0..8ae152f 100644
--- a/nblibrary/ice/Hemis_seaice_visual_compare_obs_lens.ipynb
+++ b/nblibrary/ice/Hemis_seaice_visual_compare_obs_lens.ipynb
@@ -219,6 +219,9 @@
     "ds1_ann = ds1.resample(time=\"YS\").mean(dim=\"time\")\n",
     "ds2_ann = ds2.resample(time=\"YS\").mean(dim=\"time\")\n",
     "\n",
+    "climo_nyears = min(climo_nyears, len(ds1_ann.time))\n",
+    "climo_nyears = min(climo_nyears, len(ds2_ann.time))\n",
+    "\n",
     "with open(\"cice_masks.yml\", \"r\") as file:\n",
     "    cice_masks = yaml.safe_load(file)\n",
     "\n",
@@ -1309,9 +1312,9 @@
     "\n",
     "# Set up axes\n",
     "if first_year > 1:\n",
-    "    model_start_year1 = end_year - len(ds1_mar_nh.time)\n",
+    "    model_start_year1 = end_year - len(ds1_mar_nh.time) + 1\n",
     "    model_end_year1 = end_year\n",
-    "    model_start_year2 = base_end_year - len(ds2_mar_nh.time)\n",
+    "    model_start_year2 = base_end_year - len(ds2_mar_nh.time) + 1\n",
     "    model_end_year2 = base_end_year\n",
     "    lens1_start_year = ds_cesm1_aicetot_nh.year[60]\n",
     "    lens1_end_year = ds_cesm1_aicetot_nh.year[95]\n",
@@ -1319,9 +1322,9 @@
     "    lens2_end_year = ds_cesm2_aicetot_nh.year[145]\n",
     "else:\n",
     "    model_start_year1 = 1\n",
-    "    model_end_year1 = climo_nyears\n",
+    "    model_end_year1 = len(ds1_mar_nh.time) + 1\n",
     "    model_start_year2 = 1\n",
-    "    model_end_year2 = climo_nyears\n",
+    "    model_end_year2 = len(ds2_mar_nh.time) + 1\n",
     "    lens1_start_year = 1\n",
     "    lens1_end_year = 36\n",
     "    lens2_start_year = 1\n",